2 oz white rum
1/2 oz maraschino liqueur
3/4 oz lime juice
1/2 oz grapefruit juice
Lime wheel, for garnish
Add the rum, maraschino liqueur, lime juice, and grapefruit juice into a shaker with ice. Shake for 12–15 seconds, until well-chilled. Double-strain through a fine mesh strainer into a chilled coupe glass. Garnish with a lime wheel.