This apple cinnamon cake is a rich and decadent dessert that is perfect for a special 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 brown butter frosting which is made with butter that has been browned to give it a nutty and caramelized flavor. It adds a rich and creamy flavor to the cake that will leave your guests wanting more.