Toffee Bars
["1 c. flour", "1 c. margarine or butter", "1 c. brown sugar", "1 egg yolk", "6 Hershey bars", "2/3 c. chopped nuts"]
["Mix flour, butter, sugar and egg yolk; real well.", "Spread in 9 x 13-inch pan.", "Bake at 350\u00b0 for 20 minutes or until golden brown. After baking, place Hershey bars on baked crust.", "Spread when Hershey bars are melted and sprinkle top with nuts."]
["flour", "margarine", "brown sugar", "egg yolk", "bars", "nuts"]