Preheat your oven to 350° F. Line two cookie trays with unbleached parchment paper.
In a large mixing bowl, stir the butter and maple sugar together. Add the baking soda, baking powder, cinnamon, pumpkin spice, salt, pumpkin, and egg. Stir until combined.
Add the oats, cassava flour, and maple syrup. Stir until combined. Fold in the chocolate chips.
Using a cookie scoop (or a tablespoon) drop balls of the dough onto the cookie trays. Usually two scoops makes one big cookie. Flatten and shape the cookies into circles. These cookies will not spread.
Bake for 12-15 minutes. The edges should be starting to brown slightly.
Once they come out of the oven, add additional chocolate chips, flakey sea salt, and chopped nuts. Let them cool for 5 minutes, then move them to a cooling rack. These cookies freeze well!