Preheat the oven to Broil. Preheat your mini waffle iron for 4-5 minutes, until hot.
In a medium bowl, stir together the mozzarella egg, almond flour, psyllium powder, Italian seasoning, garlic powder, and baking powder, if using.
Pour half of the batter into the preheated mini waffle maker. Cook until browned and crispy, about 4-5 minutes. Repeat with remaining batter. Let the chaffles cool for 5-10 minutes, to firm up.
Arrange the chaffles onto a baking sheet. Top with marinara, mozzarella, and pepperoni.
Place the pizza chaffles into the oven, 6 inches from the broiler, for 2-3 minutes, until the cheese is melted and browned.
