Step 1

Heat a waffle iron on its medium setting.

Step 2

Place cottage cheese, egg yolks, vanilla, and sugar, if using in the blender. Add 6 tablespoons water, oat flour, baking powder and salt and blend until mixture is smooth batter. Transfer to a medium bowl using a spatula to get all the batter out.

Step 3

Beat the egg white to soft peaks then fold into the batter.

Step 4

Spray pre-heated waffle iron with oil spray. Pour batter into iron (about 1/4 cup) and cook until golden brown and steam is no longer being released.