A dispensing method and dispenser that dispenses a measured amount of a substance from a container are provided. The dispenser includes a measuring chamber having an adjustable volume, and a conduit section that adjusts the volume of the measuring chamber by moving a plunger that forms a wall of the measuring chamber. The substance is poured into the measuring chamber from the container through a valve, and the valve closes to seal the substance within the measuring chamber. The plunger may include a spout through which the substance is dispensed when the plunger is driven by the conduit section into the measuring chamber to reduce the volume of the measuring chamber.