Chocolate Chip Zucchini Cake - cooking recipe

Ingredients

2 c. grated zucchini, drain
1/2 c. softened butter
1 1/2 c. sugar
1/2 c. oil
2 eggs
1/2 c. sour cream
1/2 tsp. cinnamon
1 (6 oz.) chocolate chips
1 tsp. vanilla
2 1/2 c. flour
4 Tbsp. cocoa
1 tsp. soda
1/2 tsp. baking powder
1 tsp. cloves
1 tsp. ???

Preparation

Cream butter, sugar, oil, eggs, sour cream and vanilla.
Stir in remaining ingredients, except zucchini.
Pour into greased 13 x 9-inch pan.
Sprinkle chips over batter.
Bake at 325\u00b0 for 40 to 45 minutes.