Preheat a mini waffle maker.
In a bowl, whisk together the almond flour, shredded mozzarella, eggs, and baking powder until combined.
If making a sweet chaffle, stir in the sweetener and vanilla extract or cinnamon.
Lightly spray the waffle maker with non-stick spray or brush with oil.
Pour in enough batter to cover the surface without overflowing.
Cook until golden brown and crispy, about 3-4 minutes per chaffle.
Repeat with the remaining batter and serve with your favorite toppings.