- 1/2 cup ice cubes
- 1/2 cup fresh pink grapefruit juice (from 1 small grapefruit), plus 1 wedge for garnish
- 1/4 cup passion fruit puree, such as Goya
- 4 tablespoons dark rum
- 1 tablespoon superfine sugar
- Splash seltzer
Place the ice cubes, grapefruit juice, passion fruit puree, dark rum, superfine sugar and seltzer in the pitcher of a blender and blend on high until smooth and slushy. Pour into a double old-fashioned glass and garnish with a wedge of fresh pink grapefruit.