Preheat oven to 350 degrees F. and line a large baking sheet with parchment paper.
Place cake mix, butter and egg into a large mixing bowl. Mix well until dough forms. Scoop onto baking sheet about 1 inch apart.
Bake for 12-14 minutes, until baked through. Use a knife to form cookies when removed from oven if desired. Let cool and serve room temperature.