This gluten-free recipe for Pineapple Upside-Down Cake is perfect for those with dietary restrictions. The cake is made with a gluten-free flour blend and a topping of melted butter, brown sugar, and canned pineapple rings. The cake batter is made with basic ingredients like sugar, eggs, and milk. The cake is baked in a single pan and then inverted onto a serving plate. The result is a deliciously sweet and moist cake that is safe for those with gluten sensitivities to enjoy. This cake is perfect for a special occasion or for anyone looking for a gluten-free dessert option.