Household food preparation appliance comprising a working container with a device to heat the contents of the working container

A household food preparation appliance comprising a working container enclosing a tool which is rotatably driven by a motor, a device to heat contents of the working container and a removable cover that closes the working container;

• the removable cover contains an opening to add ingredients to the working container, at least one steam release orifice, and a removable measuring cap that is housed in said opening to add ingredients, wherein the measuring cap may occupy at least two stable positions in said opening of the cover without adjusting the placement of the cover on the working container and that moving the measuring cap from one stable position to another varies the passage cross-section of the steam release orifice,
• wherein the measuring cap comprises a body having a cylindrical lower section, a flared upper section extending upwards from the cylindrical lower section, and a peripheral skirt held by the flared upper section at an end opposite the cylindrical lower section, and wherein the peripheral skirt extends downward from the end of the flared upper section.