Stir all ingredients together in a small bowl, until batter is free from most clumps. Add as much water as needed to get a waffle batter consistency. The batter should be pourable, but not super thin.
Once waffle iron is heated, spray top and bottom of iron with non-stick cooking spray and pour batter over bottom of the iron. Natural non-stick cooking sprays do not work well in this recipe because this waffle tends to stick easily. Use the back of your spoon to spread the batter evenly over the iron.
* I use Tone It Up protein powder and I love the peanut butter flavor. Any flavor will work.
-Nutritional information is calculated with Tone It Up protein powder, 22g Simple Truth canned pumpkin purée and Simple Truth brand carton egg whites with no additional toppings.