1/4 c butter or marg
1/2 c oil
1 3/4 c sugar
1 tsp vanilla
1/2 c sour milk
2 1/2 c flour
4 Tbsp cocoa
1/2 tsp baking powder
1 tsp baking soda
1/2 tsp cinnamon
1/2 tsp cloves
2 c grated zucchini
1/2 c chocolate chips
Grate enough zucchini to make 2 cups. I use unpeeled but know of some people who peel their zucchini to hide it from others eating the cake.
Combine oil, eggs and butter. Mix in sugar and vanilla.
Combine all dry ingredients in a separate bowl.
Add dry ingredients, alternating with sour milk.
Add chocolate chips and zucchini.
Pour into greased and floured 9" by 13" pan. Bake in preheated oven at 325°F for 45 minutes or until toothpick inserted comes out clean.
I don't bother to frost the cake because it is so moist. Enjoy! ;)