Toffee Bars
["2 sticks butter", "1 egg yolk", "1 c. chopped pecans or walnuts", "5 Hershey bars", "1 c. brown sugar", "2 c. flour"]
["Mix and pack into glass pan. Bake 25 minutes at 350\u00b0."]
["butter", "egg yolk", "pecans", "bars", "brown sugar", "flour"]