Two Ingredient Lemon Bars- 1 box of angel food cake mix, 2 cans lemon pie filling (two 21 oz. for a total of 42 oz.) Mix dry cake mix and cans of pie filling together in large bowl. Pour into greased 9 x 13″ baking pan. Bake at 350 degrees for 25 minutes or until top is starting to brown. Cool on wire rack and sprinkle with powered sugar. It has a melt in your mouth spongy texture.