Zucchini Chocolate Cake

I made this for August "summertime fun" bunco at Karen Faust's house. This is slightly adapted from a recipe at cooks.com. I didn't use the cloves.

1/4 c. butter
1/2 c. vegetable oil
1 3/4 c. sugar
2 eggs
1 tsp. vanilla
1/2 c. milk
2 1/2 c. flour
4 tbsp. cocoa
1 tsp. soda
1/2 tsp. cinnamon
1/2 tsp. cloves (optional)
1/2 tsp. baking powder

Cream butter, oil, and sugar; add eggs, vanilla, and milk. Beat with mixer. Mix in rest of ingredients. Add dry ingredients to creamed mixture. Beat well. Stir in 2 cups grated zucchini. Put in a greased 10 x 10 inch cake pan. Sprinkle with 3/4 cup chocolate chips. Bake at 325 degrees for 40-50 minutes or until done.