1. Preheat oven to 350°F and grease a 9×13 inch baking pan.

2. Whisk together flour, cinnamon, ginger, nutmeg, cloves, baking powder, baking soda and salt.

3. In another bowl mix oil, brown sugar, granulated sugar, eggs, vanilla, orange zest and pumpkin puree.

4. Pour wet ingredients into dry ingredients and mix until smooth.

5. Spread batter into prepared pan.

6. Bake for 35 to 40 minutes until a toothpick comes out clean.

7. Allow cake to cool completely.

8. Beat butter until smooth and add cream cheese.

9. Mix in powdered sugar, vanilla and salt until smooth.

10. Add whipping cream if frosting needs thinning.

11. Spread frosting over cooled cake and slice.