1/2 c. butter
3 3/8 c. white sugar
1 1/8 c. packed brown sugar
1 (13 oz.) can evaporated milk
1/2 lb. marshmallows
2 oz. baking chocolate
1 (12 oz.) pkg. semi-sweet chocolate chips
1 tbsp. vanilla
nuts (if desired)
1 (12 oz.) pkg. sweet milk chocolate chips

Combine butter, milk and sugars in large heavy saucepan. Stir over medium heat until sugar is dissolved. Bring to a boil. Cover. Boil 5 minutes. Turn off heat and add marshmallows. Stir until dissolved. Add 3 kinds of chocolate, one at a time. Add vanilla and nuts. Pour into lightly greased 10 x 15 pan. Will keep for several months in refrigerator.

Makes approximately 5 pounds.