Back in the XIV century, Boccaccio, in one of his most famous stories from The Decameron (VI, 10), wrote about Certaldo.

This little story shows that Certaldo’s red onion has been known for ages, even before the middle ages! It’s a slow food product and a true treasure of our land, available in two types: Stantina, a round, purplish onion with juicy flesh that’s best enjoyed in the summer, and Vernina, a bright red and tangy onion that’s picked from late August through the winter and is a symbol of Certaldo.

“Certaldo, as you may have heard, is a castle of Val d’ Elsa situated in our county, which, however small it may be, was once inhabited by noblemenand men of substance; and thither, for that he found good pasture there, one of the friars of the order of St. Anthony was long used to resort once a year, to get in the alms bestowed by simpletons upon him and his brethren. His name was Fra Cipolla (Friar Onion) and he was gladly seen there, doubtless due as much to his name, as to other reasons, for thus it was known that the soil of those fields produces onions, that are famous throughout all Tuscany.”

But even before Giovanni Boccaccio’s Friar Onion, the red onion had already become a symbol of the hardworking, strong, and sweet nature of Certaldo’s people, and it was even on the town’s flag. It was on the white side of the two-tier shield, with the motto: “By nature, I am strong yet sweet, and everyone here likes me, those who work and those who sit.” But in 1633, the Priors in charge of the town thought the crest wasn’t good enough for their town and changed it to a lion. Later, in the XIX century, the city council brought back the original crest, which you can still see on our town’s flag today.

When you’re in Certaldo, don’t be surprised if you don’t see onions everywhere! Most farmers here grow their own for family use or to sell locally. If you’re on the hunt for these sweet red gems, your best bet is the weekly local markets on Wednesday and Saturday, or the annual Sagra della Cipolla (The Onions’ Festival).

We’re so proud of our local onions that we celebrate them every year with a week-long festival! It’s held in the old town of Certaldo Alto, usually around the end of August, when our farmers harvest the Vernina type. Every evening, we get together to enjoy the delicious dishes made with red onions, using recipes passed down through generations. People from all over come together, including locals, visitors, and even tourists, to feast on the good food and plenty of Chianti wine from our local producers, all while enjoying theater plays or themed performances.

The main goal of this event is to keep the old recipes and traditions alive, but we also want to look to the future. So, on the second-last day, the festival features a food competition between the town’s quarters, which is a preview of The Calambur: Certaldo’s medieval Palio, which will happen a few weeks later. Each quarter has to come up with a new and creative dish made with red onions. A committee of the public gets to taste and vote on the best recipe. This year’s competition is extra special because they have to create a dessert! I bet you’ve never thought of onions for dessert, but you might be surprised by the genius recipes and flavor combinations these people have come up with over the years.

They’ve evolved from simply making the usual soup, pasta, and meat dishes with red onions to pickling, canning, making jam and jelly, adding them to chutneys, sweet and salted pies, and even using them as homeopathic medicine, inspired by ancient remedies passed down from our grand-grand-parents. In essence, if you’re a big fan of red onions like we are, you can create almost anything with them!

At the Cooking School, we’re known for our most famous, handmade Red Onion Jam. It’s a family tradition that has been passed down through generations. It has a delightful bitter-sweet flavor and goes wonderfully with local pecorino cheese and salami, or Giuseppina’s special pork tenderloin in an old-style dry marinade… absolutely delicious!

If all this onion talk has captured your interest and you’re thinking of trying onions for dessert, here’s a special treat for you. This was created and shared by Carina, a friend of mine, and I’m telling you: if you’re into onions, you absolutely have to try this one!

Did we get you mouth-watering yet? Then here’s the recipe for you!

Red wine caramelized onions & dark chocolate tartlets

Slice up 2-3 sweet red onions from Certaldo and toss them into a pan with a tiny bit of unsalted butter and about 2-3 tablespoons of muscovado brown sugar. Cook it gently on low heat until it’s soft but not browned. Then, pour in a glass of Chianti red wine, sprinkle in a pinch of ground cinnamon, ground cloves, a few cardamom seeds, and some pink pepper granules (or any other spices you like). Let the liquid simmer until it’s mostly gone and the alcohol evaporates. Finally, add a chunk of dark chocolate. Let it sit for a bit, then get ready to make your favorite shortcrust pastry. The one I used had a nice rustic flavor because I mixed in half of the plain white flour with buckwheat flour. Blind-bake your pastry in a preheated oven, let it cool down before taking it out of the pan, and fill each pastry case with the caramelized onions. Sprinkle some chopped walnuts on top and finish with goat cheese crème fraîche or vanilla ice cream. Enjoy!

Have you tried this recipe? Share your photos in the comments below and tell us what you think!