Step 1

Step 1: Fill a cocktail shaker with ice.

Step 2

Step 2: Add the white rum, lime juice, grapefruit juice, maraschino liqueur, and optional simple syrup to the shaker.

Step 3

Step 3: Shake vigorously for 10-15 seconds, until well-chilled and combined.

Step 4

Step 4: Strain the mixture into a chilled coupe glass.

Step 5

Step 5: Optionally, garnish with a lime wheel or a cherry.