Many Piedmontese products are recognized as true regional excellences throughout the Italian territory and have become real symbols of this land, such as the Truffle and Hazelnuts. The most famous dishes of Piedmontese cuisine are bagna cauda, agnolotti, gnocchi with Castelmagno, a typical cheese of the region, and Vitello tonnato, which is served both as an appetizer and as a main course. A renowned traditional dish is Piedmontese fassona, the meat of a typical breed of cattle reared in the Cuneo and Asti areas, which is tender and low in fat. The white truffle is the most valuable species of truffle of all. In fact, due to the very high costs it can reach, it is considered the most precious of diamonds. The precious Piedmontese hazelnuts, with their spherical shape and tender pulp, are distinguished not only by their taste but also by their high yield after shelling.