The crossword solution for the term 'Bouillabaisse Cooking Vessel' is 'stewpan', which is a 7-letter word. A stewpan is a type of cooking vessel that is used to make stews, soups, and other dishes that require slow cooking. It is typically made of metal or ceramic and has a lid to help retain heat and moisture. Bouillabaisse is a traditional French seafood stew that is usually cooked in a stewpan.