Butter sides heavy 3 quart saucepan. Add:

4 c. sugar
1 c. butter
1 2/3 c. evaporated milk

Cook over medium heat to soft ball stage (236 degrees), stirring frequently. Remove from heat.

Add:

2 c. semi-sweet chocolate pieces, milk chocolate
1 pt. marshmallow creme
1 tsp. vanilla
1 c. broken walnuts

Beat until chocolate melts. Pour into buttered 13 x 9 x 2 inch pan. Score while warm. Cut when cool and firm.