Mix everything together and pour into a greased 13 X 17 rimmed cookie sheet.Bake at 350 for 25 minutes or until toothpick comes out clean. Half a recipe can be put into a 9 X 13 pan.
For filling: Mix powdered sugar and cheese and add whipped topping and maple syrup. Beat and spread on top of cooled cake.
For topping: Melt butter. Remove from heat. Add chocolate chips. Stir until smooth and spread hot topping over the filling.
Recipe by Amish 365 at https://www.amish365.com/the-amish-cook-gloria-takes-on-little-debbie/