Toffee Bars
["1 3/4 c. sugar", "1 c. margarine, softened", "1 c. sugar", "1 tsp. vanilla", "1 egg yolk (reserve egg white)"]
["Beat all ingredients until well mixed.", "Pat evenly onto greased 10 x 15-inch cookie sheet.", "Beat egg white and brush over dough.", "Sprinkle 1/2 cup finely chopped almonds or walnuts and pat gently into dough."]
["sugar", "margarine", "sugar", "vanilla", "egg yolk"]