All you need to do is mix all the ingredients in one bowl, pour it into a baking dish, and top with apples.
Ingredients :
CAKE1 pkg. white cake mix (2 layer)
1 tsp ground cinnamon
1 c sour cream
3 eggs
1/4 c water
1 (21oz) can apple pie filling
GLAZE
1 c confectioners' sugar
1-1 1/2 Tbsp. milk
Directions :
Combine the first 5 ingredients in a large bowl with a mixer until smooth. Pour the dough into a greased 9 x 13 inch baking dish.
Spoon the apple pie filling on top of the dough, covering the entire surface. Bake at 350F for 40 minutes.
Make the glaze with milk and confectioners' sugar and sprinkle over the cooled cake.