Turn waffle maker on and let it get hot while you prep the waffle mixture. Spray with cooking spray.
Add all ingredients into blender and blend until everything is completely smooth, about 1-2 minutes. Let it rest for a few minutes so batter can thicken.
Pour waffle batter (about ⅓ cup depending on the size of your waffle maker) into waffle maker and close until done to your liking!