Frozen dessert apparatus

An apparatus for extruding viscous materials comprising:

• a soft serve dessert mixer-dispenser having at least one dispenser port;
• means for opening an closing said port wherein said means for opening and closing said port is a tap lever;
• timing means connected to said opening and closing means;
• activating means connected to such timing means such that when said activating means is activated, said timing means causes said opening and closing means to open said port for a preset period of time, dispensing a volumetric portion of soft serve dessert.