Three-Chocolate Fudge
["3 1/3 c. sugar", "1 c. butter or margarine", "1 c. packed dark brown sugar", "1 (12 oz.) can evaporated milk", "32 large marshmallows, halved", "2 c. (12 oz.) semi-sweet chocolate chips", "2 milk chocolate candy bars (7 oz. each), broken", "2 sq. (1 oz. each) semi-sweet baking chocolate, chopped", "1 tsp. vanilla extract", "2 c. chopped pecans"]
["In a large saucepan, combine first four ingredients.", "Cook and stir over medium heat until sugar is dissolved.", "Bring to a rapid boil; boil for 5 minutes, stirring constantly.", "Remove from the heat; stir in marshmallows until melted.", "Stir in chocolate chips until melted.", "Add chocolate bars and baking chocolate; stir until melted.", "Fold in vanilla and pecans; mix well.", "Pour into a greased 15 x 10 x 1-inch baking pan.", "Chill until firm.", "Cut into squares. Yields 5 1/2 pounds."]
["sugar", "butter", "brown sugar", "milk", "marshmallows", "semi-sweet chocolate chips", "milk chocolate", "semi-sweet baking chocolate", "vanilla extract", "pecans"]