This apple cinnamon upside-down cake is a beautiful and delicious dessert that is perfect for any occasion. The cake is moist, fluffy, and loaded with chunks of fresh apples and a warm cinnamon flavor. The upside-down presentation makes it even more impressive, and the caramelized apples add a sweet and tangy flavor to the cake. Serve it with a dollop of whipped cream or a scoop of vanilla ice cream for a delightful treat.