Toffee Squares
["1 cup butter or margarine, softened", "1 cup packed brown sugar", "1 egg yolk", "1 tsp. vanilla extract", "2 cups all-purpose flour", "1/4 tsp. salt", "2 pkgs. (4 oz. each) German sweet chocolate", "1/2 cup chopped nuts"]
["In a mixing bowl, cream butter and sugar.", "Add egg yolk, vanilla, flour and salt; mix well.", "Spread into a greased 13 x 9 x 2 inch baking pan.", "Bake at 350 degrees for 20-25 minutes or until golden brown.", "Melt chocolate in a heavy saucepan over low heat, stirring constantly.", "Spread over hot bars.", "Sprinkle immediately with nuts.", "Cool; cut into 1-1/4 inch squares."]
["butter", "brown sugar", "egg yolk", "vanilla extract", "flour", "salt", "pkgs", "nuts"]