These mini pineapple upside-down cakes are perfect for parties or individual servings. The cakes are made with a buttery brown sugar topping, pineapple rings, and maraschino cherries, and a moist vanilla cake base. The cakes are baked in a muffin tin, and each one is a perfect portion size. Serve them warm with a dollop of whipped cream or a scoop of vanilla ice cream for a delicious dessert.