Chocolate Zucchini Cake
["1/2 c. margarine", "1 1/2 c. sugar", "1/2 c. oil", "2 eggs", "1/2 c. sour milk", "1 tsp. vanilla", "1 tsp. baking soda", "1/2 tsp. baking powder", "3 Tbsp. cocoa", "1/2 tsp. cinnamon", "2 1/2 c. flour", "1/2 tsp. salt", "2 c. peeled and shredded zucchini"]
["Cream shortening and sugar with electric mixer.", "Add eggs and vanilla.", "Sift dry ingredients together and add with sour milk; add zucchini.", "Spread in 9 x 13-inch pan."]
["margarine", "sugar", "oil", "eggs", "sour milk", "vanilla", "baking soda", "baking powder", "cocoa", "cinnamon", "flour", "salt", "zucchini"]