- Preheat oven to 350 F. Line cupcake pans with cupcake liners.
- Sift and whisk flour, baking powder, baking soda, salt, cinnamon, and pumpkin pie spices together in small bowl. In another large bowl, whisk oil, eggs, brown sugar, pumpkin, and vanilla extract together until combined. Combine dry ingredients into the wet ingredients in portions of 1/3, combining completely between each addition.
- Pour/spoon the batter into the liners, or if doing mini cupcakes, fill a piping bag and snip off the tip to help fill the cupcake liners. Fill each liner 2/3 full. For regular sized cupcakes, bake for 20-22 minutes, or until a toothpick inserted in the center comes out clean. For mini sized cupcakes, bake for about 12-13 minutes.