HEATING COOKER

Cooking is performed to serve tasty food by appropriately managing moisture of an object to be cooked without burning the surface thereof. A box-shaped housing, a cooking cavity for accommodating an object to be cooked, the cooking cavity being arranged within the housing, an upper-face heater and a lower-face heater arranged in the cooking cavity, a boiler arranged within the cooking cavity, a water tray formed outside the cooking cavity and into which a given amount of water that is entirely evaporated in a given steaming time is poured, a water guide passage within the housing, the water guide passage into which water is supplied from the water tray to the boiler; and a control unit for causing an operation to generate steam from the boiler to be performed for at least a steaming time from when cooking starts, are provided.