In a storage container mix together entire box of cake mix, any variety, and box of angel food cake. Use a spoon to mix all ingredients together well.
Add 3 tbsp. of your combined cake mix + Add 2 tbsp. water into your mug and stir well. Microwave for 1 minute. (Alternatively you can mix 1.5 tbsp of each dry mix in your mug well and then add water.)
Enjoy, topped with a dollop of cool whip is great too!