Abstract: A paddle mixer for evenly and efficiently mixing a volume of aggregate with minimal spillage is described. The paddle mixer includes a first portion, a second portion, a first paddle, and a second paddle. The paddle mixer may include a means for adjustably fixing the first portion to the second portion. The first paddle and the second paddle are arranged on the first portion and the second portion, respectively, such that the first paddle and the second paddle are perpendicular to each other, promoting mixing of the volume of aggregate with a whirlpool effect allowing mixing with minimal spillage. The first paddle and the second paddle may also be arranged perpendicular to each other by the means for adjustably fixing the first portion and the second portion.