Foie gras is one of the most famous delicacies of French cuisine, the most delicate pâté that melts in your mouth. The liver of specially fattened ducks or geese is used to make it. The flavor of foie gras can be described as rich, buttery, and tender, unlike ordinary duck or goose liver pâté. Foie gras is sold whole or prepared as mousse, parfait, or pâté. It can also be served as an accompaniment to another dish, such as steak.