Oats may be blended in a food processor to make oat flour. Pulse until oats resemble flour.
Directions
Heat waffle iron on medium setting.
Add cottage cheese, egg yolks, vanilla, sugar, water, oat flour, and baking powder to a blender. Blend until batter is smooth. Pour into bowl. Reserve.
Separately, beat egg whites to soft peaks. Gently fold into batter until evenly combined with no streaks remain.
Coat waffle iron with non-stick spray. Pour a little less than ½ cup batter into iron and cook until golden brown. Serve immediately.