In a large heavy saucepan, combine butter,
milk and sugar.
Bring to a boil over medium to medium high heat.
Cover, reduce heat to low and boil 5 min.
Turn off heat.
Add marshmallows and stir until melted.

One at a time, add unsweetened chocolate,
chocolate chips and sweet chocolate,
stirring until melted. Stir in vanilla.
If desired, add nuts.
Mix well with wooden spoon.
Pour into a large buttered pan,
such as a jellyroll pan.
Let stand until firm before cutting
into squares, about 5-6 hours.
Makes about 150 pieces (or pat's snack)
Nutrients per serving: 66 cal., .40g protein,
10.2g carb., 2.64g fat (36% total cal),
2.5mg chol., no fibre (big surprise!!),
10.2 mg sodium.