The apple topping is baked right into this chocolate cake.
1 Prepare Apple Topping. Heat oven to 375 F. Grease and flour 9-inch square baking pan.
2 Stir together flour, sugar, cocoa, baking powder and salt in medium bowl. Add water, shortening, egg and vanilla; beat until smooth and well blended. Spread into prepared pan. Carefully spoon Apple Topping evenly over chocolate batter to within 1/2-inch from edges; do not stir.
3 Bake 35 to 40 minutes or until chocolate is set and cake-like. Cool completely in pan on wire rack; cut into squares. Serve topped with whipped topping or ice cream, if desired. 8 to 10 servings.
4 Apple Topping: Stir together 1 can (20 oz.) apple pie filling, 1/2 teaspoon lemon juice and 1/2 teaspoon ground cinnamon in small bowl.