A piston-operated dispenser unit for confectionery food products, comprising (I) a door (4) mountable on a dispensing mouth (5) of a machine (2) for making and instantaneously dispensing confectionery products； (II) at least one dispensing tap (9), in turn comprising a main body (10), extending frontally from the door (4) and forming, inside the door (4), an outflow duct (11) for the product to be dispensed, and a piston (13), slidably mounted inside the duct (11) and mobile between an open position and a closed position of the duct (11)； (III) a manually operated lever (17), connected to the piston (13) for moving the piston (13) between the open position and the closed position of the duct (11), and vice versa； and (IV) a spring (24) operating on the piston (13) to apply an action for keeping the piston (13) in the closed position.
