This is a fairly low-fat cake because there's no oil.
1 pkg. yellow or spice cake mix
1 can apple pie filling
1 Tbsp. cinnamon
1/4 cup sugar
Heat oven to 350 degrees. Grease and flour a 9x13 in. baking pan.
Mix together cake mix, pie filling and eggs. Pour 1/2 of the batter into prepared pan. Mix cinnamon and sugar together. Sprinkle half of it over the batter. Pour the rest of the batter into the pan and sprinkle with remaining sugar mixture.
Bake for 30 minutes.