Cinnamon Sugar Pumpkin Donuts

1. Preheat oven to 350 degrees F. Grease your donut pan. 
2. In a medium bowl, combine the dry ingredients (flour, sugar, pumpkin pie spice, baking powder, salt), whisk together, and set aside.
3. In a separate medium bowl, combine the wet ingredients (pumpkin puree, eggs, vanilla extract, melted unsalted butter, vegetable oil) and whisk together.
4. Add the dry ingredients to the wet ingredients and mix until smooth.
5. If you are making a loaf or muffins instead of donuts, mix about half of your chocolate chips into the batter, saving the rest for the top.
6. For donuts, pipe the batter into the greased donut pan, filling each cavity about 3/4 way full. (Alternatively, fill a greased or lined 12-cup muffin pan or a greased loaf pan).
7. Bake the donuts for 12-15 minutes. (A loaf will take about 40-50 minutes, and muffins about 18-20 minutes).
8. Remove from oven and let cool for 5 minutes.
9. Pop the donuts out of the pan.
10. In a shallow bowl, combine 1/2 cup sugar and 1 tsp cinnamon for the topping. 
11. Dunk each side of the cooled donuts in the melted butter (1 stick) and then cover them in the cinnamon sugar mixture.
12. Drizzle with caramel sauce if desired.