Zucchini Chocolate Cake
["1/2 c. margarine, softened", "1/2 c. vegetable oil", "1 3/4 c. sugar", "2 eggs", "1 tsp. vanilla", "2 1/2 c. flour", "4 Tbsp. cocoa", "1/2 tsp. baking powder", "1 tsp. baking soda", "1/2 tsp. cinnamon", "1/2 tsp. ground cloves", "1 c. sour milk (2 tsp. lemon juice and 1 c. milk and let stand 5 minutes)", "2 c. shredded raw zucchini"]
["Cream margarine, oil and sugar.", "Add eggs, vanilla and sour milk and beat well.", "Mix all dry ingredients and add to creamed mixture.", "Beat well.", "Stir in zucchini.", "Pour into greased and floured 9 x 13-inch cake pan.", "Top with 1/2 cup chocolate chips."]
["margarine", "vegetable oil", "sugar", "eggs", "vanilla", "flour", "cocoa", "baking powder", "baking soda", "cinnamon", "ground cloves", "sour milk", "zucchini"]