A mixing drink dispenser (10) having a source of water (26) for mixing with a beverage ingredient in a hopper (12) to make a drink having a tooless removable mixing chamber assembly (34) with cylindrical upper body 130 for receipt of beverage ingredient and water and vertical axis, high rotation mixing propellers (36, 180, 182) and a lower section with a slanted bottom (164) joined to and in open fluid communication with the upper section and having a non-closable beverage outlet (148) for free, unobstructed passage of freshly mixed beverage out of the mixing chamber assembly (34) and into a beverage container (46). The propellers (36, 180, 183) are driven by a motor (39) with a drive axle extending through a non-sealed opening in the slanted bottom (164) and removably linked to the propellers via a magnetic linkage (166, 170). An upwardly facing inlet (210) in a domed, splash reflective top (208) is in communication with a tooless removable hopper assembly (12) having a horizontally rotatable feed auger (252) releasably linked to and driven by an external auger drive motor (268). An agitation wheel within the hopper is driven by direct linkage with the auger (252) to stir ingredient within the hopper during operation of the auger.