1 1/2 oz of Light Rum
1 oz of Pineapple Juice
1/2 tsp of Maraschino liqueur (or cherry liqueur)
1 of maraschino cherry (or cherry)
1/2 tsp of grenadine syrup
Combine the rum, pineapple juice, maraschino liqueur, and grenadine in a shaker half-filled with ice cubes. Shake well, strain into a cocktail glass, and garnish with a maraschino cherry.