Add dry ingredients and buttermilk, alternating until well combined.
Whisk egg whites to stiff peaks.
Add baking powder and then immediately, and gently fold egg whites into batter.
Cook on hot waffle iron until crust is crispy and inside is done and tender. Mine took about 7 minutes.
Notes
Note*** Cooking time will vary, depending on your waffle maker.If using cake flour, eliminate cornstarch.Original recipe calls for butter and sugar to be creamed, instead of the butter melted.My waffle maker makes very large waffles, so one portion is half of a waffle. Your nutrition facts will vary, depending on the size of your waffles.