A manually operable dispensing cap for use with granulated and powdered material containers such as powdered milk jars, coffee cans and the like is disclosed. The cap has a slider contained within a railing mounted on a main body and which dispenses material to a receiving compartment. The slider is manually operated and regulates the flow of material into the receiving compartment. Overflow is eliminated by locating the receiving cup within close proximity to the mounting via positioning means extending from the top of the cap.