Why Napoleon Accidentally Made Turin Italy’s Chocolate Capital

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In 1806, Napoleon Bonaparte signed his Continental Blockade into law. The decree banned trade with Britain and any nation doing business with the British. Across occupied Europe, goods that had flowed freely for decades suddenly disappeared.

In Turin — Italy’s elegant northern city, nestled at the foot of the Alps — the effect on one beloved industry was immediate. The chocolate shops began to run dry.

What happened next was not planned. But it changed how the world eats chocolate.

A City Already in Love With Chocolate

Turin’s obsession with chocolate long predates Napoleon. When Spanish merchants brought cacao to the court of the House of Savoy in the early 1600s, the city fell hard.

Chocolate was consumed as a drink — thick, sweet, and spiced — in the aristocratic circles of Piedmont’s ruling dynasty. It was a mark of status, a pleasure reserved for those who could afford it.

By the 1700s, Turin had developed its own signature chocolate drink. The bicerin — layers of espresso, dark chocolate, and cream served in a small round glass — became a city institution. The café that invented it, Al Bicerin, has been open since 1763 and still serves the same drink today.

But for all its chocolate heritage, the ingredient that made it all possible came from far away. And Napoleon was about to cut off the supply.

The Blockade Hits the Chocolate Shops

When the Continental System took effect, cocoa imports into Piedmont collapsed. What little remained was priced beyond reach for most chocolatiers. Turin’s confectioners — craftspeople who had built a trade over two centuries — faced a crisis with no obvious solution.

They could reduce production, raise prices, and watch their customers disappear. Or they could find another way.

The answer was growing in the hills surrounding the city — and its potential had never been properly explored.

The Hazelnut That Saved the Shops

The Langhe and Monferrato hills of Piedmont are covered in Tonda Gentile hazelnut trees. These small, intensely flavoured nuts had been part of local cooking for centuries. Peasants ate them. Grandmothers baked with them.

The Tonda Gentile — meaning “the Gentle” — was prized for its thin shell and unusually sweet, buttery flavour. Unlike other hazelnut varieties that turn bitter when roasted, the Tonda Gentile stays sweet. It was the ideal hazelnut for chocolate, though no one had yet realised it.

A confectioner named Michele Prochet began to experiment. He ground Tonda Gentile hazelnuts finely and mixed them with the small amounts of cacao still available. The result was smooth, rich, and complex — and it stretched the precious cocoa further. The people of Turin, desperate for something sweet in difficult times, loved it immediately.

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A Name Borrowed From the Carnival

The new paste needed a name worthy of its character. Turin gave it one borrowed from the city’s most beloved carnival figure.

Gianduja (pronounced “jan-DOO-ya”) was a stock character in the Piedmontese theatrical tradition — a warm, jovial peasant farmer who wore a tricorn hat, carried a sausage, and embodied the spirit of working-class Piedmont. He was generous, funny, and unmistakably local.

Naming the new chocolate after him was a deliberate act of civic pride. This was not a substitute for real chocolate. This was something Turin had made entirely its own.

By the 1860s, gianduja was sold in individual pieces called gianduiotti — each one given a distinctive upturned-boat shape that allowed the chocolate to be lifted by its foil wrapper without fingers touching it. This shape remains unchanged to this day.

If you’re travelling through Piedmont, the region also produces some of Italy’s most celebrated wines. The Barolo wine of the Langhe hills comes from the very same landscape that gave the world its greatest hazelnut — a remarkable overlap of terroir and tradition.

From Wartime Invention to Global Phenomenon

Turin’s chocolatiers continued refining gianduja through the 19th and early 20th centuries. The technique — Piedmontese hazelnuts blended with chocolate — became a defining feature of the region’s confectionery tradition, influencing chocolatiers across northern Italy.

Then, in 1964, the Ferrero family in Alba — a town 60 kilometres south of Turin, deep in the Langhe hazelnut country — launched a new product. They called it Nutella.

The recipe drew directly from the gianduja tradition: Tonda Gentile hazelnuts from the same hills, ground with cocoa. The same principle that had saved Turin’s chocolate shops during Napoleon’s wars.

Today, Nutella is sold in over 160 countries. Italy’s food culture, from the secrets behind artisan gelato to the story of gianduja, is built on a long tradition of turning simple, local ingredients into something extraordinary.

Turin’s Chocolate Shops Today

Walk along Turin’s Via Po or through the covered Galleria Subalpina today and you will still find chocolatiers selling gianduiotti in twisted foil wrappers. The shops carry the feeling of another century. The smell of roasted hazelnuts and dark chocolate fills the arcades.

Several of Turin’s historic chocolate houses — including Caffarel, founded in 1826, and Peyrano, established in 1915 — still produce gianduiotti by hand. The moulds, the foil twists, and the recipe trace back directly to the crisis years of Napoleon’s blockade.

Napoleon’s Continental System ended in 1814. The hardship that forced Turin’s confectioners to innovate has long been forgotten.

But the happy accident it produced has never stopped. Every time you twist open a gianduiotto, or spread Nutella on morning toast, you are holding a small piece of that story.

You Might Also Enjoy

• The Piedmont Wine That Italians Only Open When Something Truly Matters — discover Barolo, the noble wine from the same hills that gave us gianduja
• The Ancient Italian Secret That Makes Artisan Gelato Impossible to Fake — another beloved Italian food tradition with deep regional roots
• Why the Women of Bari Still Make Pasta on Their Doorsteps Every Day — more stories of Italian food traditions passed down through generations

Plan Your Italy Trip

Ready to visit Turin and taste a gianduiotto straight from the source? The Ultimate Italy Travel Guide has everything you need to plan a trip that goes beyond the highlights and into the heart of Italian culture.

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