Purists in Toulouse, Castelnaudary, and Carcassonne each claim their town invented the 'true' version, and the rivalry over the recipe is still half-serious, half-real.
Cassoulet is a slow-cooked stew of white beans, duck or goose confit, and sausage, traditionally baked for hours in an earthenware pot. At markets and festivals it's ladled into paper cups for eating on foot, crust and all.