1. Spray crock pot with cooking spray.
2. Whisk skim milk with dry pudding mix in crock pot until dissolved.
3. In a medium bowl, mix dry cake mix, water, applesauce and egg whites with whisk for two minutes until blended.
4. Very gently pour cake mixture over pudding mixture. DO NOT MIX!
5. Cover and cook on HIGH for 2 1/2 hours.
6. Serve hot.