Toffee
["1 c. chopped pecans", "3/4 c. packed brown sugar", "1/2 c. margarine", "1/2 c. chocolate chips"]
["Butter square pan, 9 x 9x 2-inch.", "Spread pecans on pan.", "Heat sugar and margarine to boiling in 1 quart pan, stirring constantly.", "Boil over medium heat, stirring constantly, 7 minutes. Immediately spread mixture over pecans in pan.", "Sprinkle chocolate chips over hot mixture.", "Place cookie sheet over pan until chocolate chips are melted.", "Spread melted chocolate over candy.", "Cut into about 1/2-inch squares while hot.", "Refrigerate until firm."]
["pecans", "brown sugar", "margarine", "chocolate chips"]