- Jamaican Juice Rate this Recipe Prep Time 3 minutes minutesTotal Time 3 minutes minutes Ingredients - What's in it?▢ 2 oz Dark Rum▢ 5 oz Grapefruit Juice Adjust Servings 1 serving Instructions - How to make it:Add 3 ice cubes to a mason jar. Using the exact amounts as above. pour the rum and juice into the masor jar and mix. Long Island Iced Tea Scooby Snack Shot Course Cocktail Drambuie Espresso Martini Joy Juice