I whipped it up last nite while cooking supper. It went together in a snap but after getting it in the oven, I discovered that I had none of the frosting ingredients except for about 1 cup powdered sugar! (Lesson learned, check pantry for all ingredients before getting started!) So, I made a glaze of powdered sugar, milk and vanilla and poured it over the pan before cutting into bars. It was great! Just the right amount of sweetness and I saved a lot of calories since I didn't use the cream cheese frosting. Either way, this one will go into my favorites. It's a nice snack cake or light dessert (or breakfast for Cousin Carol!). Of course, you could top it with ice cream and/or the cream cheese frosting! ;)
If you don't have a 10x15-inch pan, use a 9x13 and bake a little longer. The bars will just be thicker.
If you don't add the cream cheese frosting, you don't have to refrigerate it.