bread sauce: creamy white sauce made with bread instead of flour and seasoned with cloves and onion
sauce: flavorful relish or dressing or topping served as an accompaniment to food
plasma: (physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors; a gas becomes a plasma when it is heated until the atoms lose all their electrons, leaving a highly electrified collection of nuclei and free electrons