No blender needed for this lighter, more refreshing take on the classic poolside drink. Using minimal cream of coconut and coconut milk gives the cocktail just a hint of richness.
Fill a glass with ice. Place rum, juice, cream of coconut, coconut milk, and 1 cup ice in a shaker. Shake vigorously until outside of shaker is frosted and cold, 30 seconds. Pour into glass. Garnish with bitters, cinnamon, lime, and if desired, pineapple leaf.
To make crushed ice at home, pulse regular ice cubes in a food processor until coarsely chopped. Use immediately, or freeze flat in a gallon-size resealable plastic bag and break up as needed.