Choco Brownie Cake
["1/2 c. margarine", "1/2 c. shortening", "1 c. water", "6 heaping Tbsp. cocoa", "2 c. flour", "2 c. sugar", "1/2 tsp. salt", "2 eggs", "1/2 c. buttermilk", "1 Tbsp. soda"]
["Bring first 4 ingredients to boil.", "Sift next 3 ingredients together.", "Mix next 3 ingredients together.", "Add all together; stir well.", "Bake 30 minutes at 350\u00b0 in 9 x 13-inch pan.", "Frost with any sour cream chocolate frosting."]
["margarine", "shortening", "water", "cocoa", "flour", "sugar", "salt", "eggs", "buttermilk", "soda"]