Preheat oven to 350°F. Spray pan with cooking spray.
Combine flour, cinnamon, pumpkin spice, baking powder, baking soda, and salt.
Whisk eggs with a fork and combine with oil. Add sugar and brown sugar. Mix well.
Combine egg mixture with pumpkin puree.
Add flour mixture to pumpkin mixture and stir until well mixed.
Let batter rest for 10 minutes.
Add batter to bundt pan. Place on bottom rack of oven. Bake for 35 minutes until a tooth pick inserted in the middle of the cake comes out clean.
Place on a rack and let cool for 10-15 minutes. Run a knife gently around the outside of the cake and around the inside stim.
Place a cake plate over the bundt pan and invert. Cake should easily slide out of the pan.
Let cake completely cool. Add powdered sugar dusting or a light powdered sugar glaze.