Dumplings are a food that consists of small pieces of dough either wrapped around a filling (as in ravioli or wontons) or incorporating other ingredients (as in gnocchi). The dough can be based on bread, flour, or potatoes, and may be filled with fish, meat, sweets, or vegetables. They may be cooked by boiling, frying, simmering, or steaming. Dumplings may be savoury or sweet and can be eaten by themselves, with gravy or sauce, or in soups or stews.