This apple cinnamon upside-down cake is a unique and delicious dessert that is perfect for any occasion. The cake is made with fresh apples and a generous amount of cinnamon which gives it a warm and comforting flavor. The secret to this recipe is the upside-down method which involves placing the apples on the bottom of the pan and pouring the cake batter on top. When the cake is flipped over, the apples are on top and the cake is on the bottom, creating a beautiful and delicious dessert.