Preheat the oven to 350° F.
Add the oat flour, pastry flour, coconut sugar, pumpkin pie spice, baking powder, cinnamon, and baking soda to a large mixing bowl.
Mix all dry ingredients thoroughly to combine.
Make a well in the center of the bowl, then add the nut milk, canned pumpkin, pure maple syrup, and peanut butter.
Mix the wet ingredients together, then slowly mix the wet into the dry ingredients to form a smooth donut batter.
Evenly distribute the batter between six cavities of a silicone donut pan.
Pop the donuts in the oven to bake for about 25-30 minutes, or until a toothpick inserted comes out clean.
Let the donuts cool completely, then remove them from the pan.
Pour the melted coconut oil into a small round dish.
In a separate small, round dish, mix together the coconut sugar and cinnamon to form the cinnamon sugar topping.
Dip the top of each donut in the coconut oil followed by the cinnamon sugar mixture.
Dig in and enjoy!