Preheat oven to 350°F (177°C). Grease 14 cavities of a mini muffin pan.
In a large bowl, mix together pumpkin pie mix and oil. Add in the flour and fold it in with a spatula until no flour lumps remain.
Use a 1.5 tbsp cookie scoop to scoop the batter and release it into your prepared mini muffin pan.
Place muffin pan in the oven and bake donuts for about 15-20 minutes or until done. Let donuts cool fully before eating. If desired, you can coat the donuts in cinnamon sugar before serving. I recommend doing this after the donuts have cooled. See notes for more details. Store uneaten donuts in the fridge or freezer.
