This tropical dessert is a fun and unexpected treat for a crowd. No one will know that it comes together in just 15 minutes—or even faster if you buy a pineapple that’s already been peeled and cored. Either way, make sure the pineapple is fresh, not canned. When making the brown sugar glaze, keep the heat at medium—any hotter and the glaze could turn to caramel. Top each slice of caramelized pineapple with a generous scoop of vanilla or coconut ice cream and sprinkle with chopped roasted, salted macadamia nuts (or toasted slivered almonds) for a dessert that’s lick-the-plate good.