Chocolate-Sour Cream Pound Cake
["1 c. margarine, softened", "2 c. sugar", "1 c. firmly packed brown sugar", "6 large eggs", "2 1/2 c. all-purpose flour", "1/4 tsp. baking soda", "1/2 c. cocoa", "1 (8 oz.) carton sour cream", "2 tsp. vanilla flavoring"]
["Beat margarine at medium speed with electric mixer, about 2 minutes or until soft and creamy.", "Gradually add sugars, beating at medium speed for 5 to 7 minutes.", "Add eggs, one at a time, beating until yellow disappears."]
["margarine", "sugar", "brown sugar", "eggs", "flour", "baking soda", "cocoa", "sour cream", "vanilla flavoring"]