Creamy Apple Squares - cooking recipe

Ingredients

1 Pillsbury Plus yellow cake mix
1/2 c. soft margarine
1/4 c. firmly packed brown sugar
1/2 tsp. cinnamon
2 apples, thinly sliced
1 c. sour cream
1 egg

Preparation

Preheat oven to 350\u00b0.
Combine first 2 ingredients; mix until crumbly.
Reserve 2/3 cup of this mixture for the topping.
Add brown sugar and cinnamon to reserved topping.
Mix well; set aside. Press remaining mixture into bottom of ungreased 9 x 13-inch cake pan.
Arrange apple slices over base.
Blend sour cream and egg; spread evenly over the apple slices.
Sprinkle reserved topping mixture over all.
Bake at 350\u00b0 for 25 to 30 minutes or until topping is golden brown and bubbly.