Piedmont's signature pralines are made with gianduia — a silky smooth cocoa, sugar, and hazelnut paste that owes its unmistakable flavor to roasted Piedmontese hazelnuts of the Tonda gentile variety. Even though some sources claim the blend was invented in the early 1800s, it wasn't until half a century later that gianduia was perfected by a Turinese chocolatier named Caffarel.

According to one legend, the first gianduia pralines were introduced in 1865 during the Turin carnival. They were originally called givù, which means tidbits in local dialect, and supposedly gained the name gianduiotto after being handed out to the people in the streets by Caffarel himself, who was dressed as Giandujot, one of the most popular characters of the Italian commedia dell'arte.