Abstract: The invention relates to a utensil for cooking foods, more particularly meat in the oven in a humid atmosphere and preventing fat being splashed onto the oven walls. This can involve cooking joints of meat remaining stationary on a supporting grill or cooking pieces of meat by infra-red radiation.The cooking utensil comprises a box having a base serving as a water container and a collector for cooking fat and gravy, provided with a lid having at least a hole, whereby the box and lid are associated with a frame for assembling them and clamping them together and for supporting a support for the joints to be cooked.