Never Fail Fudge
["1 (14 1/2 oz.) can evaporated milk", "6 c. sugar", "2 sticks margarine or butter", "3 c. chopped pecans", "1 pkg. semi-sweet chocolate chips", "4 sq. unsweetened chocolate", "1 (35 oz.) pkg. marshmallows"]
["Melt butter in large saucepan.", "Add sugar and milk.", "Bring to boil; boil for 16 minutes, stirring constantly.", "Remove from heat. Add marshmallows, chocolate chips and squares, cut in small pieces.", "Stir until melted.", "Add pecans.", "Beat rapidly for 1 minute.", "Pour into large, well buttered cake pan (17 1/2 x 12-inch).", "Cool; cut into squares."]
["milk", "sugar", "margarine", "pecans", "semi-sweet chocolate chips", "unsweetened chocolate", "marshmallows"]