Steak tartare is an appetizer made with finely chopped raw beef or horse meat that is seasoned with salt, pepper, Worcestershire sauce, Tabasco, and mustard. The meat is combined with a raw egg yolk, capers, shallots, parsley, and (sometimes) chopped gherkins.
When served, steak tartare is usually accompanied by toasted bread, rye bread, or french fries. It is believed that steak tartare was originally a variation on beefsteack à l'Américaine, a dish of raw chopped beefsteak that first appeared in France at the turn of the 20th century.