PURPOSE: To enable to repeat the same cooking a plurality of times by a method wherein cooking control data are cleared only when the predetermined instruction or new cooking control data are inputted in a cooker such as microwave range or the like.

CONSTITUTION: The cooking control data are stored by operating a function key part 1 and a numerical key part 2 in a random-access memory 7. When a cooking starting key part 4 is pressed, A Triac 12 is operated, under the control of a starting control part 9, by an output control part 11 in accordance with the stored data. Because, even after the completion of the above-mentioned cooking, the control data is held within the random-access memory 7, the same cooking mode can be repeated only by pressing the starting key part 4 again. Yet, when the function key part 1 or a clear key part 3 is pressed for the input of next cooking data, the former cooking data are cleared.