Spray your waffle iron with non-stick cooking spray, then plug it in.
Mix the egg whites and coconut oil.
Add protein powder, baking powder, and stevia. Mix well.
Once waffle iron is ready, spoon ¼ of the batter into the center of the waffle iron. Close iron. Let cook for 2-3 minutes.
Remove waffle from iron, and repeat for 3 more waffles. You may need to brush some more non-stick spray (or coconut oil) into the middle of the iron between waffles.
Set waffles aside and mix together cinnamon, stevia, and erythritol.
Brush waffles with coconut oil, and dip in the cinnamon mixture.
Enjoy!