Vitello tonnato is a Piedmontese dish of cold, sliced veal covered with a creamy, mayonnaise-like sauce that has been flavored with tuna.
[1][2] It is served chilled or at room temperature,[3] generally in the summertime, as the main course of an Italian meal or as "an exceedingly elegant antipasto for an elaborate dinner".
[5][6] It is prepared at least a day or more in advance by braising or simmering a piece of veal from the back leg called Eye Round, which is then cut into thin, individual servings.
For the mayonnaise a variety of seasonings can be used, including anchovies, cayenne pepper, capers, and lemon juice.
Some of the sauce is spread out on a serving platter and the cold slices of veal are arranged in a single layer on top.