Directions

1. Grease waffle iron with a small amount of melted butter, and heat. In a large bowl, sift together the flour, sugar, baking soda, baking powder, cinnamon, and salt.
2. In a separate bowl, whisk together egg yolks, buttermilk, melted butter, and vanilla. Pour into dry mixture, and combine.
3. In a medium bowl, beat egg whites until stiff but not dry. Fold whites into batter.
4. Ladle about 1/3 cup batter onto each section of the waffle grid; spread batter almost to the edges. Close lid, and bake 3 to 5 minutes, until no steam emerges from waffle iron.
5. Transfer cooked waffles to a baking sheet; place in an oven set to low heat, about 200 degrees, while using remaining batter.