Chess Cake
["2 sticks margarine, melted", "2 c. brown sugar", "1 c. granulated sugar", "2 c. self-rising flour", "4 eggs", "1 tsp. vanilla", "1 c. pecan pieces"]
["Mix ingredients.", "Bake at 350\u00b0 in oblong pan until cake falls (or about 45 minutes).", "Cool and cut into squares."]
["margarine", "brown sugar", "sugar", "flour", "eggs", "vanilla", "pecan"]