Think of pineapple juice as the extrovert at every party. It doesn’t care who you are; it just wants everyone to get along. Malibu and pineapple juice are basically soulmates. The tartness of the pineapple cuts through the sweet coconut, making it balanced enough to drink all afternoon.
A word of caution: do not use that sad, watery pineapple juice from the back of your fridge. Go for the thick, pulpy stuff. If your glass looks like a smoothie that went to college, you’ve done it right. Add a maraschino cherry and suddenly you’re not just a person in sweatpants—you’re a person in sweatpants on a beach.