SPINY PUMPKIN

Florence, 21 November 2025

A week or so ago, my wife and I were doing a gentle hike on Lake Como. We’ve both been a bit under the weather, so a hike with none of the brutal climbs required of many of the hikes around Lake Como were just what we needed. We had also done a few other, rougher hikes along the lake in the previous days and had discovered to our dismay that heavy rains back in late September had made a number of them impassable. So as I say, a nice gentle hike along a well-kept path was just what we needed. For any of my readers who might want to know which hike we did, it was the “Via Verde”, which runs between the villages of Moltrasio and Laglio (and is not to be confused with the rival “Green Way”, which runs further north along the same shoreline of the lake). Here is a photo of the typical view one enjoys along this path at this time of the year.

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Towards the end, we were walking into the village of Carate Urio when we came across a table set up along the path and on which were placed two crates holding a dozen or so of these strange-looking vegetables – or were they fruits?

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My wife trained her iPhone camera on one of these vegetables (or fruits?) and promptly identified it. In Italian, it is called “zucca spinosa”, or spiny pumpkin. They were certainly spiny, but the relationship to pumpkins wasn’t immediately obvious. And being a pumpkin, it’s sort of both a fruit and vegetable: botanically a fruit but culinarily a vegetable given the way it is eaten (as we shall see in a minute). For the purposes of this post, I will henceforth refer to it as a vegetable.

Different parts of the world have different names for this vegetable. It’s called chayote in the US. Here we have a lady from Louisiana showing off two of them (although, reflecting that State’s French heritage, they are often called mirlitons there, as they are in nearby Haiti).

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The Americans have actually just borrowed the Spanish name for the vegetable; we’ll come back to the Spanish name in a minute.

It’s called chocho or chuchu or some variant thereof in places as varied as Mauritius, India, Sri Lanka, Brazil, and Jamaica. This is thought to be the Pidgin English version of chayote. Here we have a farmer in Assam with his crop of chocho.

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The vegetable is called choko in Cantonese (am I wrong in thinking that this ultimately derives from chocho?), which later became the name used in Australia and New Zealand thanks to the Cantonese who emigrated there in the 19th Century. Here we have an Australian proudly showing off the chokos growing in his garden (note that his variety is without spines).

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Meanwhile, in the islands of the eastern Caribbean, the vegetable is called christophine or christophene. Here we have early risers in a market in the island of Martinique searching for their choice christophenes.

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There are more names used for this spiny pumpkin, but the ones I’ve cited give us an indication of where it originally came from. It is one of those foodstuffs which make up the great Columbian exchange: that massive movement of foodstuffs, people and diseases which occurred after Christopher Columbus stumbled across the Americas. I’ve mentioned this exchange several times already in these posts, when writing about the prickly pear, the Jerusalem artichoke, vanilla, and turkeys. And now I can add to the list the spiny pumpkin, or christophene (which reflects the connection to Christopher Columbus), or chayote, which is a Spanish transliteration of the Nahuatl name chayohtli. In fact, modern studies indicate that the chayote was first cultivated in Mesoamerica, between southern Mexico (in the states of Oaxaca, Puebla, and Veracruz) and Honduras, with the most genetic diversity being present in both Mexico and Guatemala. Here, we have a field of chayote in Mexico.

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Just to finish my elongated riff on names, another name for the vegetable which is used in Guatemala and El Salvador is güisquil or huisquil, which is derived from another Nahuatl name for it, huitzli. Here we have a Guatemalan singing the praises of the güisquil.

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But to come back to my wife and me, standing in front of that table on the Via Verde. The vegetables’ anonymous grower was offering them for free to passers-by. I was hesitant, but my wife was bolder. She reminded me that we were having some old friends over for dinner the next day, why not try the spiny pumpkins out on them? But we don’t know how to prepare them, I objected. My wife waved off that objection, immediately doing a search on the internet. Hey presto, she found what sounded like a pretty easy recipe, explained in a video by a lady from Calabria in southern Italy, who mentioned in passing that the spiny pumpkin was particularly popular in her region – readers should note this link of the spiny pumpkin to Calabria, as we shall come back to it in a minute. My doubts brushed aside, we picked up five of these little spiny pumpkins and loaded them up in our rucksacks.

The next day, preparations started early. As recommended by the Calabrian lady, I peeled the pumpkins with a potato peeler – the spines were a little annoying but no more than that. Then I opened them up to take out the stone, after which I cut the halves into thin slices. Then I could start on the other two ingredients, tomatoes and onions. I divided up six large tomatoes, and sliced up one small onion (the recipe called for more but I’m not a fan of onions). At which point, I handed over to my wife, who threw all the ingredients into a big bowl, added the herbs, salt, and oil, and mixed everything up thoroughly. At the right moment, she ladled the mix out into a pan and put it into the oven for 40 minutes at 180 degrees Centigrade. I throw in a photo of what the result looked like – this is actually from the Calabrian lady’s video; we forgot to take a photo since we were so busy with preparations of the dinner.

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Because what we had prepared was a side dish. The main course, the pièce de resistance, was cotechino with lentils and mashed potatoes. Like that, if the side dish turned out to be a disaster, we still had the main dish to fall back on. Luckily, it all turned out well. When I carried in the side dish, I explained the whole back-story. None of our guests – three Italians and one American – had ever heard of zucche spinose (in the case of the Italians) or chayote (in the case of the American). We all tried the dish with a little trepidation, but luckily it tasted really good. To me, the spiny pumpkins tasted like a cross between zucchini and cucumber. They went well with the tomatoes.

We didn’t finish the dish, so my wife froze the remains. When we get back from Florence where we are at the moment (to see an exhibition on Fra’ Angelico), we’ll try it out on our son too.

I fear we’ll never make the dish again, unless our anonymous grower on Lake Como is kind enough to make next year’s crop available to passers-by, because you cannot grow spiny pumpkins in the north of Italy (except, as we have seen, in Lake Como’s microclimate). As a result, northern Italians have no culinary experience with it – which is why our three Italian guests, all from Milan, had never heard of it. Of course, we could travel down to Calabria. Because, I discovered, Calabria is a “hot spot” for the growth and consumption in Italy of the spiny pumpkin. This is a consequence of one of the many individual rivulets that made up the giant global flow of plants out of the Americas after the continent’s accidental discovery by Columbus. When, in 1502, the Spaniards took over the Kingdom of Naples, of which Calabria was part, they carried the spiny pumpkin from their new dominions in Mesoamerica to their new dominions in southern Italy. And the plant took particular root in Calabria.

But we can’t go to Calabria just to eat spiny pumpkin! I’ll have to come up with an exciting trip full of new things that we’ve never done before if I’m ever going to persuade my wife. I have one or two things in mind. There’s the Riace Bronzes in Reggio Calabria, which we’ve never seen. There’s some old Christian mosaics in a monastery up in the Calabrian mountains, mentioned by John Julius Norwich in one of his books, which we’ve never seen. I’ve got the whole winter to come up with some more things to see and do …

RED WINES FROM SOUTHERN ITALY

Milan, 24 May 2021

In an earlier post, I confessed that the amount of wine my wife and I consumed during the two lockdowns which we have endured over the past year was considerable. In that same post, I said that we focused much of our wine drinking on red wines from the south of Italy – Sicily, Sardinia, Puglia, some Calabria, some Basilicata. I always prefer red wines – white wines give me stomach burns. My wife is quite happy to follow me in my choices, although from time to time she’ll splash out and get herself a bottle of white wine.

I chose to buy wines from southern Italy because I didn’t know them very well, which fed into my general tendency to support the underdog and be contrarian. After sampling a few bottles, I also felt that the red wines of southern Italy had more oomph to them than wines from northern and central Italy – I beg readers not to ask me to translate that into the flowery language of the wine connoisseur because I can’t. As I once confessed in an earlier post, my general method of assessing wines is “mmh! that’s a nice wine!” or “mm … not a good wine”.

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Also – and this was important with the tightening of household budgets under lockdown – they were generally cheaper than other Italian wines.

I also felt virtuous in supporting local grape varieties. Not for me the Cabernet Sauvignon, Merlot, Chardonnay, Syrah, Grenache Noir, Sauvignon Blanc, Pinot Noir, and the few others which dominate wine-making worldwide! No sirree, I was going to support the more than 1,500 grape varieties (yes, I kid you not, 1,500) which exist in Italy.

So from Sardinia I was buying wines made with Cannonau grapes (or to be more precise, where the Cannonau made up the largest share; the great majority of Italian wines are blends).

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From Sicily, it was wines made with Nero d’Avola grapes.

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From Puglia, it was wines made with Primitivo grapes.

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From time to time, though, we branched out into wines made with Nero di Troia grapes.

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From Basilicata, it was wines made with Aglianico grapes.

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From Calabria, it was wines made with Gaglioppo grapes.

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(For reasons which are now not clear to me through the haze of history, I chose few if any wines from Campania – a lapse to be rectified in any future lockdowns!)

At some point, though, through the wine fumes, I began to wonder how many of these grape varieties really were local. One can make the case that actually no domesticated grape varieties are really autochthonous. Archaeologists tell us that domestication and the related discovery of wine-making took place somewhere in the region between the Black Sea and Iran, between the seventh and the fourth millennia BC. The earliest evidence of domestication has been found in Georgia (the country, not the US state) and of wine production in Iran in the northern Zagros Mountains.

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Subsequently, domesticated vines and wine-making knowledge spread to other civilizations in the region, first Egypt and Lower Mesopotamia, and then to the Assyrians, Phoenicians and Greeks (at a later period vine and wine-making moved along the Silk Road to China and Japan, but that is a story for another day). The Greeks and the Phoenicians, continues this story, transferred the domesticated grape vine and wine-making technologies further west, to Italy, Spain, and the south of France. The Romans then carried the vine and wine-making further north in Europe to what are more-or-less its northernmost borders today. And then when Europe colonized the rest of the world, the Europeans took their vine and wine-making knowledge with them. So in this view of history, no domesticated grape vines are really autochthonous.

But that’s one Creation Story. Another Creation Story points to the fact that the vine species which was domesticated for wine-making (called, appropriately enough, Vitis vinifera) grows wild from Georgia to Portugal.

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So why could wine-making not have been independently discovered in several places?

A third Creation Story, and the one – for what it’s worth – that I feel is most credible, is that wine-making did indeed start in Iran or thereabouts, and cuttings of the domesticated vines were indeed carried westwards. But in their new homes, these vines could well have crossed spontaneously with local wild forms of the vine (or have been made to cross with them by the local viticulturists), thus shaking up their DNA a little and possibly affecting berry size, ripening time, sweetness, and whatever other characteristics viticulturists prized at the time. In this view of history, each locality can have vines which are hybrids of immigrant vines and local ones, which makes them pretty local. And anyway, even if a vine was brought in from somewhere else, if it’s been around in one locality for a long time surely it’s become local? (a bit like all Americans of immigrant stock nevertheless considering themselves locals) And anyway, the grape vine’s DNA is subject to spontaneous mutations (like American immigrants), which over time will distinguish it from its neighbors. All excellent reasons, I think, for declaring that grape vines which have been grown in one locality long enough can be considered autochthonous.

Of course, one could argue that all these Creation Stories are irrelevant because of the American pest phylloxera which devastated vineyards planted with Vitis vinifera in the late 19th Century (we have here a cartoon of the time, whose caption was “The phylloxera, a true gourmet, finds out the best vineyards and attaches itself to the best wines”)

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Ever since then, pretty much all commercial vineyards are Frankensteins, with Vitis vinifera grafted onto a root stock of one of the American members of the grape vine family which are resistant to the pest. Under the circumstances, I can hear some people ask, can one really call any commercial vine autochthonous?

I reject this latter argument because first, if I did accept it I wouldn’t have a story to tell, and second, because even with an American rootstock the grapes still express only the DNA of the grafted Vitis vinifera. Just as a person who has had their heart replaced is still expressing their old DNA.

So with all that out of the way, we can now focus on those wines which my wife and I (and not infrequently our son) were imbibing during lockdown, and ask ourselves the question: are the grapes that went into making them local or not? As usual in life, the answer is yes in some cases, no in others.

As one might expect, many of the local vines in southern Italy have their own Creation Stories. The cynic in me suggests that a good number of these were invented to increase a wine’s marketability, although I could well imagine that there is a desire on the part of the local people to have the stories of their vines reflect their own Creation Stories. Thus, many of the Creation Stories reflect the south of Italy’s ancient history as Magna Graecia, that arc of Ancient Greek colonies which stretched from Puglia all the way to Sicily. They suggest that the vines were brought from Greece by these early colonists. Others look to the Phoenicians as the source of their vines; Phoenicians also had colonies in Sicily and further afield. This map shows the situation in about 500 BC.

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If these Creation Stories are true, they would place the original migration episodes for the vines in question at some two and a half thousand years ago, quite long enough to claim that they are now fully local. Other Creation Stories suggest instead that the local vines are crosses between local wild stock and immigrant stock. Who can deny that such vines are fully local? Ampelographers have weighed in (these are experts in the study and classification of cultivated varieties of grape). They have given savant judgements on the heredity of countless vines by comparing the shape and colour of their leaves and their grape berries. Wonderful word, ampelographer! It rolls off the tongue like a good wine rolls down the throat. In my next life, I want to be an ampelographer, it must look so cool on a CV.

Anyway, along have come DNA studies, to cut through all the bullshit. We finally have a scientific basis for making judgements about a vine’s genealogy.

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And the white-coated scientists in their labs have discovered some very interesting things.

Take Cannonau, the grape variety that is the Sardinian grape par excellence (editorial note: since photos of bunches of grapes get pretty boring pretty quickly, I will instead be throwing in nice photos of the places where the various grapes grow).

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DNA studies have shown that actually, it is none other than Garnacha from Spain! (which, by the way, is also none other than Grenache; the French brought the vine from Spain and then frenchified the name) The most likely Creation Story in this case is that the Spaniards brought Garnacha to the island some time during their centuries-long dominion, from 1324 to 1718. Some Sardinians have tried to claim that the move was actually in the other direction, from Sardinia to Spain, but I don’t think that will wash, especially since a number of other “local” Sardinian grape varieties have also turned out to have a Spanish origin. On the one hand, I’m saddened by the fact that although I thought I was supporting a local variety when I bought Cannonaus in fact I wasn’t. On the other hand, I was pleased to learn of this Spanish connection, because I recall thinking, when I first tried Cannonau, that it reminded me of Rioja, and Garnacha grapes are one of the constituent grapes of Rioja.

Skipping to the island of Sicily, what about the Nero d’Avola grape?

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Well there, I’m happy to say, I have been supporting an autochthonous variety – that is to say, a variety which could well have been introduced several thousands of years ago by the Dorian Greeks who colonized the part Sicily where the town of Avola is located; the town does indeed seem to be the center of this grape’s distribution. The original immigrant grape could actually have been a forefather of today’s Nero d’Avola, since DNA studies have revealed a cousin-like relationship between it and two other ancient Sicilian grapes, Catarratto and Inzolia. As far as I know (although the white-coated scientists publish many of their DNA studies in scientific journals which I don’t have access to), no relationship has (yet) been found between Nero d’Avola and Greek grape vine varieties. It could well be that the forefather has vanished, as old vine varieties were replaced with newer ones; phylloxera also put paid to a large number of varieties.

Vaulting now over to Puglia, in Italy’s heel, we can have a look at the Primitivo grape.

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And here I must start by admitting that my wine choices were not supporting autochthonous grapes; Primitivo is not an Italian variety. Nevertheless, we have a fascinating story here. DNA studies have shown that actually Primitivo is a Croatian grape variety, more specifically one from the Dalmatian coast. Unfortunately, the devastations of phylloxera mean that there is hardly anything left now of the variety in its homeland – a few vines here and there. We can imagine some adventurous southern Italian sailing across the Adriatic Sea to Dalmatia and bringing cuttings back home. As far as can be judged, this was quite recent, some time in the 18th Century. The grape’s Italian name points to why viticulturists were interested in it – it was an early (“primitive”) ripener.

What makes the Primitivo story really fascinating is that DNA studies have also confirmed that it is pretty much the same as the “Californian” grape Zinfandel! (bar a mutation or two) How a Dalmatian grape variety ended up in southern Italy is not hard to imagine. But how on earth did it end up in California?! The best guess is by quite a circuitous route. Step 1 is that the variety was transferred to the Hapsburgs’ greenhouses in Vienna, when Dalmatia was part of the Austrian Empire. Step 2 is that, as part of a burgeoning global trade in plant species, horticulturalists living on the US’s eastern seaboard requested the Imperial greenhouses to send them cuttings, which they did. They probably also requested cuttings from British greenhouses, which had earlier requested them from the Viennese greenhouses. Step 3 is that one or more of these horticulturalists from the Eastern US joined the gold rush to California but took care to take vine cuttings with them. Presumably, they found that in the end it was more profitable to make wine in California than to pan for gold. (As a quick aside, one of my French cousins many times removed, who came from our family of vignerons in the Beaujolais, did something similar. He joined the gold rush to Australia but ended up making wine; I don’t know if he took cuttings with him or used the vine varieties which others had already brought to Australia. In any event, I have a whole bunch of Franco-Australian cousins whom I have never met)

But let’s get back to Puglia, to consider the Nero di Troia grape variety, which we tried from time to time during lockdown.

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DNA studies have shown that this grape has an equally fascinating genealogy – and luckily for me and my determination to support autochthonous grape varieties, I think I can safely say that it is definitely an Italian variety. DNA studies have shown that Nero di Troia’s mother is Bombino bianco, an ancient white grape variety found all along the Adriatic coast but especially in Puglia, while its father is Uva rosa antica, now only found as a very minor variety in the province of Salerno in Campania.

So far, so good. But what makes Nero di Troia more interesting than most varieties is that DNA studies have also shown that it has two full siblings (same father vine, same mother vine): Bombino nero and Impigno. Which just goes to show that grapes are like humans: you and your siblings can have the same parents but you can be quite different from each other.

What’s even more interesting is that comparisons of the DNA profile of the father, Uva rosa antica, to those in DNA libraries have revealed that this minor variety from Salerno is one and the same with another minor variety called Quagliano found only in a few Alpine valleys in Piedmont, in the very north of Italy, which in turn is one and the same with a variety called Bouteillan noir found in Provence, in France. Which just goes to show that there must have been quite a vigorous, though completely informal and unmonitored, trade in vine cuttings throughout southern Europe.

Moving on to Basilicata, the wines we tried from that region during the long months of lockdown were based mostly on the Aglianico grape.

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This is definitely one of the grapes where the locals have a Creation Story involving its introduction to the region by the Ancient Greeks through their colonies in Basilicata. Alas, DNA studies have revealed little if any relation to other existing Greek varieties, so if Aglianico was imported to Basilicata the original Greek plantings have all disappeared. Which suggests that perhaps Aglianico is actually a cross between some immigrant vine from somewhere and local wild stock. In any event, I think we can count this one as an autochthon.

Finally, Calabria. The wines we were drinking from this region are mostly made with the Gaglioppo grape.

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This is another grape variety that the local inhabitants wish to believe came originally from Greece, through the Ancient Greek colonies on the Calabrian coast. However, DNA studies have clarified that Gaglioppo is a very Italian grape, being a cross of the Sangiovese and Mantonico grapes. The latter is a very typical and ancient Calabrian grape. As for Sangiovese, viticulturists have used this grape to sire a whole series of grape varieties. At least ten are known at the moment, including Gaglioppo. There must have been something about Sangiovese grapes that viticulturists liked; if any ampelographer reads this, please tell me what it was. It doesn’t finish there, because in turn DNA studies have revealed that Sangiovese is itself the product of a cross between the Ciliegiolo and Calabrese Montenuovo grape varieties. Ciliegiolo is an ancient variety from Tuscany. Calabrese Montenuovo, on the other hand, has its origins in Calabria; sadly, it is now an almost-extinct relic. We have here another example of the vigorous trade in vine cuttings, this time up and down the Italian peninsula.

I could go on. For instance, each of these grape varieties is blended with various other grapes, and many of these have had their DNA studied. But I’m running out of steam and I fear that I will soon be losing my readers – there’s a limit to how much information about DNA one can absorb before one’s mind begins to whirl like a double helix.

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I leave my readers with a final plea: considering that there are 1,500 varieties of grape in Italy, please ignore any wines made with the Top Ten grape varieties and concentrate on trying out all 1,500 Italian varieties. Cin-cin!

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