Let guests man the blender for this festive beverage. Pre-measure ingredients into one-batch containers, and chill. When you're ready for another round, all you have to do is pour it into the blender, and push the button.
2 cups orange juice
2 cups Ruby Red grapefruit juice
2/3 cup fresh lemon juice
3/4 cup superfine sugar
1 cup rum
How to Make It
Process all ingredients in a blender until frothy. Serve over ice.