Preheat oven to 350F and line a muffin tin with liners and nonstick spray.
In a large bowl, whisk pumpkin, coconut oil, eggs, maple syrup, and vanilla until well combined.
In a small bowl, mix oat flour, baking powder, baking soda, salt and pumpkin pie spice.
Add dry ingredients to wet and stir until combined. Stir in any mix-ins.
Scoop into muffin tin and bake for about 22 minutes or until toothpick inserted comes out clean.
