Abstract: Described is a method for operating a cooking appliance which has a cooking vessel to which a weight measuring system is assigned, wherein the weight of a substance introduced into the cooking vessel is determined via a weight difference determination and wherein the determined weight is used as a parameter for a safety function and/or a cooking process optimization, wherein the cooking process optimization comprises at least a time optimization, with the result that the duration of the cooking process is adapted to the weight of the introduced substance. Furthermore, an assembly is described.