Cake:

1 18-1/4 oz. yellow cake mix
1/2 tsp. cinnamon
1 21 oz. can apple pie filling
2/3 cup water

In a large bowl, combine cake mix and cinnamon. Add pie filling, water and melted butter. Stir until WELL blended. Spread into a 9 x 13 cake pan. Sprinkle topping on cake batter.

Bake at 350°F 40-45 minutes until toothpick inserted comes out clean.

Topping:

1 tbsp. flour
1/2 tsp cinnamon
1/2 cup firmly packed brown sugar
1/4 cup butter, melted

Put cereal in a bag and crush. In a bowl combine crushed cereal, flour, cinnamon, brown sugar and melted butter. Set aside.