Combine all ingredients, except for the toppings, in a small bowl until smooth.
Cook according to your waffle iron's instructions. Optional to add toppings at the end.
Notes
Nutrition facts don't include toppings.
If you're allergic to eggs, you can swap it out for 1 Tbsp. chia seeds or flax seeds mixed with 3 Tbsp. warm water. This makes one "chia/flax" egg and can be used as a replacement for eggs in most recipes.