Mix together in a large bowl:
2 c sugar
1 c cooking oil
2 eggs
2 tsp vanilla
16 oz canned pumpkin

Sift together:
4 c flour
2 tsp baking soda
2 tsp baking powder
2 tsp cinnamon
1 tsp cloves
1 tsp ginger
1 tsp allspice

Stir dry ingredients into wet ingredients by hand.  Bake on ungreased cookie sheet at 350 for 10 minutes.  Not made these yet, but I have eaten them and they are lovely.  Topped with a cream cheese frosting.