Step 1

Preheat oven to 400 degrees. Line a muffin tin with liners or use a silicone muffin mold.

Step 2

In a large mixing bowl whisk together pumpkin, oil, buttermilk, sugars, egg, and egg whites.

Step 3

In a medium mixing bowl whisk together the flour, cinnamon, pumpkin pie spice, baking soda, baking powder, and salt.

Step 4

Gradually fold in the dry ingredients just until combined.

Step 5

Divide the batter evenly between the muffin wells. Place in the oven and bake for 16-20 minutes or until the tops spring back when touched.

Step 6

Remove from the oven and dust the tops with sugar if desired. Transfer to a wire rack to cool completely.