The original recipe recommends separating the eggs for lighter waffles. I do not think this is essential, but if you want to do this, separate the eggs and add only the yolks to the mixer in the initial peanut butter and egg step (#3). Then, once all of the rest of the ingredients have been added (i.e. through step #6), whip the egg whites using a hand mixer until you get stiff peaks, and gently fold the whipped whites into the waffle batter.