Caramel Apple Upside Down Cake

Directions

1. Preheat oven to 350 degrees F.
2. Butter an 8-inch round pan.
3. Clean apples, slice them (you should have 7 thin discs) and sprinkle lemon juice over each disc. Remove the core, chop the rest of apples and set them aside.
4. Melt the butter in a sauce pan. Add brown sugar and cook until sugar dissolves and mixture turns golden brown, add cinnamon. Pour the mixture in the prepared round pan and arrange the apple discs. Set aside.
5. Start preparing the cake batter by separating egg whites from the egg yolks. 
6. Whisk together the flour and baking powder in a small bowl and set aside.
7. In a large bowl, cream together butter and sugar and spices until well mixed. Beat in the egg yolks, sour cream, lemon zest and vanilla extract. Stir in flour mixture and mix well. 
8. Whip egg whites until very stiff and firm. Fold them into the butter mixture, add chopped apples.
9. Pour the batter over the apple discs and bake for 25-30 minutes until golden and a toothpick inserted in the center of the cake comes out clean.
10. Remove the cake from the oven and let it stand for about 5 minutes. Run a knife around the edges of the cake to loosen it from the sides of the baker, invert the cake onto plate and transfer back to the round pan.
11. Drizzle with caramel. Enjoy!