COMBINE 1 cup of the granulated sweetener and the lemonade mix in large plastic or glass pitcher. Add 2 qt. (8 cups) of the water; stir until mix is dissolved. Pour into ice cube trays; freeze 6 hours or until solid.
PLACE remaining 1-1/2 cups water, remaining 1/2 cup granulated sweetener and the cherry drink mix in blender; blend 15 sec. or until mix is dissolved. Add 1-1/2 cups of the lemonade ice cubes. Blend 30 sec. or until thickened and smooth.
SERVE immediately. Store leftover lemonade cubes in freezer-weight resealable plastic bag in freezer for another use.