Double-Chocolate Zucchini Cake
["1 1/2 c. sugar", "1 c. margarine or butter", "1 tsp. vanilla extract", "2 large eggs", "2 1/2 c. flour", "1 1/2 c. sour cream", "1/4 c. unsweetened cocoa", "1 tsp. baking soda", "1/2 tsp. salt", "1 medium zucchini, shredded (approximately 2 c.)"]
["Mix", "in", "order\tof", "ingredients.", "Grease", "pan and place mixture in 9 x 12-inch pan or 2 round 9-inch pans;\tbake 30 to 35 minutes at 350\u00b0."]
["sugar", "margarine", "vanilla extract", "eggs", "flour", "sour cream", "unsweetened cocoa", "baking soda", "salt", "zucchini"]