Mix the sugar, coarse salt, and Mexican chili powder together and place into a flat bowl. Rub a wedge of lime around the rim of each glass. Dip each glass rim to coat edge. Set glasses aside.
Place all remaining ingredients in a high speed blender and puree until smooth.
Pour frozen margarita mix in glasses and garnish as desired.
Mix the sugar, coarse salt, and Mexican chili powder together and place into a flat bowl. Rub a wedge of lime around the rim of each glass. Dip each glass rim to coat edge. Set glasses aside.
Place all remaining ingredients in a high speed blender and puree until smooth.
Pour frozen margarita mix in glasses and garnish as desired.