This coconut pineapple upside-down cake recipe is a tropical twist on the classic recipe. The cake batter is made with flour, sugar, baking powder, salt, butter, eggs, coconut milk, and shredded coconut in the food processor. The pineapple topping is made the same way as the classic recipe. The cake is baked until golden brown and served warm. It's a delicious and refreshing dessert that's perfect for summer.