Zucchini Chocolate Cake
["1/2 c. margarine", "1/2 c. oil", "1 3/4 c. sugar", "2 eggs", "1 tsp. vanilla", "1/2 c. buttermilk or sour milk", "2 1/2 c. flour", "4 Tbsp. cocoa", "1 tsp. baking soda", "1 1/2 tsp. baking powder", "1/2 tsp. salt", "1/2 tsp. cinnamon", "1/2 tsp. cloves", "2 c. grated, unpeeled zucchini", "1 c. chocolate chips", "1/2 to 1 c. nuts"]
["Cream margarine, oil and sugar; add eggs, vanilla and buttermilk.", "Add flour, cocoa, soda, baking powder, salt, cinnamon and cloves.", "Stir in zucchini.", "Put in 9 x 13-inch pan.", "Cover with chocolate chips and nuts.", "Sprinkle sugar over top.", "Bake at 325\u00b0 for 40 to 45 minutes.", "Very moist.", "Freezes well."]
["margarine", "oil", "sugar", "eggs", "vanilla", "buttermilk", "flour", "cocoa", "baking soda", "baking powder", "salt", "cinnamon", "cloves", "zucchini", "chocolate chips", "nuts"]