The disclosure relates to a washing machine including a cabinet defining a housing with internal components of a conventional automated clothes washer, a door mounted to the cabinet where it moves along a path of travel to selectively close an access opening to the cabinet, and a dispenser formed integrally with the rear face of the door. The dispenser includes a plurality of reservoirs. Each reservoir utilizes a siphon that has a siphon cap with at least one baffle extending laterally relative to the rear face to retard the flow of liquid within the reservoir.