In an electric mixer, beat oil and sugar. Add eggs and beat until incorporated. Beat in pumpkin and vanilla. Whisk flour, pumpkin pie spice, cinnamon, baking powder, baking soda and salt in a medium bowl and beat into wet ingredients just until combined.
Bake for 30-35 minutes or until a toothpick inserted in the middle comes out clean.
Notes
Serves 18.
*I also put an 11 oz. bag of butterscotch chips in these but since they weren't thick like brownies, they all sunk to the bottom half of the cake. So, it's up to you if you want to add them or not.
Recipe by DessertedPlanet.com at https://dessertedplanet.com/spiced-pumpkin-cake/