Creamy Apple Squares
["1 pkg. yellow cake mix", "1/2 c. margarine", "1/2 c. firmly packed brown sugar", "1/2 tsp. cinnamon", "2 apples, thinly sliced", "1 c. sour cream", "1 egg"]
["Heat oven to 350\u00b0.", "Combine first 2 ingredients; mix until crumbly.", "Reserve 2/3 cup for topping.", "Add brown sugar and cinnamon to reserved topping mix.", "Mix well and set aside.", "Press remaining mixture into bottom of ungreased 13 x 9-inch pan. Arrange apple slices over base.", "Blend sour cream and egg; spread over apples.", "Sprinkle reserved topping mixture over all.", "Bake at 350\u00b0 for 25 to 30 minutes or until topping is golden brown and bubbly.", "Serve warm.", "Refrigerate leftovers.", "Makes 12 to 15 squares."]
["yellow cake mix", "margarine", "brown sugar", "cinnamon", "apples", "sour cream", "egg"]