1 (6-ounce) container frozen lemonade or limeade concentrate, unthawed
2 cups fresh blueberries
2 cups watermelon cubes, seeds removed
1 cup ice cubes
In a blender container, combine lemonade concentrate, blueberries and watermelon. Purée until very smooth. Add ice cubes; blend until mixture is slushy. Add sugar, if needed.
Makes 4 servings.