To obtain a cooking utensil that stabilizes even when an installation surface is vibrated by an earthquake or the like, and heavy food is placed on the door of vertical opening cooking utensil.

The cooking utensil is equipped with armor 2, a heating chamber 3 that is provided inside the armor 2, an electrical chamber 6 that is provided inside the armor 2 while being adjacent to the heating chamber 3, a magnetron 7 that supplies a microwave into the heating chamber 3, a high-voltage transformer 8 that supplies high voltage to the magnetron 7, a door that opens and closes the opening part of the heating chamber 3, a leg part 9 that is provided at the bottom surface of the armor 2, and an attraction device 10 that is provided at the leg part 9 and is attracted onto the installation surface of the cooking utensil such as a microwave oven, thus obtaining the cooking utensil that stabilizes even when vibration is generated by an earthquake or the like, and at the same time heavy food is placed on the door of vertical opening cooking utensil.