Mix Dry Ingredients: In a large mixing bowl, combine the oat flour, baking powder, baking soda, pumpkin pie spice, ground cinnamon, and salt.
Mix Wet Ingredients: In another bowl, mix the pumpkin puree, almond milk, maple syrup, applesauce, and vanilla extract until well combined.
Combine Wet and Dry Mixtures: Pour the wet ingredients into the dry ingredients and stir until just combined. Avoid overmixing; a few lumps are fine*.
Preheat the Waffle Iron: Preheat your waffle iron according to the manufacturer’s instructions**.
Cook Waffles: Pour enough batter onto the waffle iron (for mine is one cup), close it, and cook according to the manufacturer’s instructions until the waffles are golden brown and crispy.
Serve: Enjoy your waffles hot with toppings like fresh fruits or a drizzle of maple syrup. Or keep in a warm oven (200 °F, 93 °C) until ready to enjoy.