Buttermilk Brownies
["2 c. sugar", "2 c. flour", "1 tsp. soda", "1 c. margarine", "1 c. water", "1/4 c. cocoa", "2 eggs", "1/2 c. buttermilk", "1 tsp. vanilla", "nuts (if desired)"]
["Mix sugar, flour and soda in a large bowl.", "Cook margarine, water and cocoa until melted and add to flour mixture.", "Add remaining ingredients.", "Pour into 15 x 10-inch pan.", "Bake at 350\u00b0 for 25 to 30 minutes."]
["sugar", "flour", "soda", "margarine", "water", "cocoa", "eggs", "buttermilk", "vanilla", "nuts"]