1/2 c. butter
1/2 c. oil
1 3/4 c. sugar
2 eggs
2 1/2 c. flour
1/2 c. sour milk (buttermilk) (make your own sour milk, add 1 tbsp. vinegar to milk)
2 c. zucchini, grated
3/4 - 1 1/4 c. chocolate chips
4 tbsp. cocoa
1/2 tsp. baking powder
1 tsp. baking soda
1/2 tsp. cinnamon
1/2 tsp. cloves

Combine as with any cake mix recipe. Sprinkle chips on top evenly. Place in an 8"x8" pan. Bake at 350 degrees for 25 to 30 minutes.

Excellent.