1.5 oz. dark rum
0.25 oz. lime juice
2 tsp. lemon juice
2 oz. grapefruit juice
1 tsp. sugar
Directions:
Fill a shaker half full with ice cubes. Pour all ingredients into shaker and shake well. Fill a tumbler almost full of ice cubes, and strain drink into tumbler. Garnish with a Lime Wedge and serve.