Preheat your oven to 350 degrees.
Spray a baking sheet with cooking spray or line with parchment paper.
Mix together the cake mix, Cool Whip, and egg in a large bowl.
Use a cookie scoop to scoop out a ball of dough.
Place the powdered sugar in a shallow bowl and roll the ball of dough in the powdered sugar.
Place on the cookie sheet.
Bake at 350 degrees for 10 to 12 minutes.
Remove from the oven and allow to cool.
Enjoy!