Preheat waffle iron. Add all waffle ingredients to a blender, except for blueberries. Blend until a smooth batter forms.
Stir in blueberries.
Spray waffle iron with nonstick spray. Pour batter into waffle iron. The batter should make 4 waffles total. Cook until golden brown, or for about 4-5 minutes.
Add your favorite toppings and enjoy. These are great for freezing too!
Notes
*If you use cottage cheese, add an additional tbsp milk.