Add one full container of Cool Whip with the egg and cake box mix, and stir until it's well combined. Then, form small balls and lay them on a baking sheet.
Bake for 10 to 12 minutes at 350 degrees Fahrenheit. The result is a batch of soft, chewy, and fluffy cookies that are just as tasty as any complex cookie recipe.
With Cool Whip cookies, you can customize the flavor without having to add a fourth ingredient — you can switch up the flavor based on the flavor of the boxed cake mix you use.