An apparatus for treating food, the apparatus includes a housing having a lid, a base and a cavity defined therein. The cavity is separated into an upper chamber and lower chamber by a divider. Upper chamber is for holding food placed upon the divider. One or more steam sources provide steam to the upper and lower chambers. One or more infrared sources are position within the upper and lower chambers to directly heat the steam, the food or the divider. A pressure-controlled environment may be provided in the upper chamber. Uniformity and increased speed of heating the food is facilitated by direct heat transfer in the upper chamber and by indirect heat transfer from the conduction of heat through the divider from the lower chamber.