1/2 c. butter
14 1/2 oz. can evaporated milk
4 1/2 c. pure cane sugar
1/2 lb. marshmallows
2 oz. unsweetened chocolate
2 (6 oz.) pkg. semi-sweet chocolate chips
3 (4 oz.) pkg. sweet baking chocolate
1 tbsp. vanilla
2 c. chopped nuts (optional)

Combine butter, milk and sugar in a Dutch oven. Stir over medium heat until sugar dissolves. Bring to a boil; cover. Boil 5 minutes, then remove from heat. Add marshmallows; stir until melted. Add chocolate, one type at a time, stirring until melted. Add vanilla and nuts; blend. Pour into buttered pans. Let stand until firm.