Gasket (1) for food cooking ovens made up of a square or rectangular frame comprising a lower crosspiece (10), an upper crosspiece (11) and two side uprights (12), each provided with a foot or stem (2) for hooking in a slot (3) formed in the front (4) of the oven and with a protruding tubular head (5), with internal cavity (9), which works in hermetic abutment on the inner surface (6) of the door, wherein said lower crosspiece (10) has a gutter appendage (20) designed to convey the condensation which is formed on the inner surface (6) of the door during cooking of the food and the washing fluids towards the inside of the chamber of the oven.