Grapefruit Rum Cooler

Directions

1. 1
   Tools:
2. 2
   highball or Collins glass
3. 3
   muddler
4. 4
   shaker
5. 5
   bar spoon
6. 6
   strainer
7. 7
   In a cocktail shaker, muddle mint, simple syrup, lemon juice and grapefruit juice.
8. 8
   Add 1-1/2 oz.
9. 9
   rum and ice.
10. 10
    Shake and strain into a highball or Collins glass over new ice.
11. 11
    Top with club soda and a splash of bitters.
12. 12
    Stir and garnish with grapefruit and mint.