2 ounces agricole rum
1/2-ounce maraschino liqueur
1-ounce fresh lime juice
3 ounces fresh grapefruit juice
Lime wedge or grapefruit slice, for garnish
Place all ingredients, except garnish, in a cocktail shaker with ice cubes. Shake for 10 seconds and strain into a chilled cocktail glass. Garnish with a lime wedge or grapefruit slice.