2 1/2 (8 oz.) milk chocolate bars, broken
1 (12 oz.) pkg. semisweet chocolate chips
1/2 lb. butter (don't substitute)
4 c. sugar
1 (14 1/2 oz) can evaporated milk
2 1/2 c. miniature marshmallows
1 1/2 c. frozen miniature marshmallows
2 tsp. vanilla
1 lb. walnut halves

In large bowl combine chocolate and butter. In large, heavy pan combine sugar, evaporated milk and 2 1/2 cups marshmallows. Cook and stir until it comes to a boil. Boil 7 minutes. Remove from heat and pour over chocolate and butter in bowl. Beat well. When mixture begins to lose its shine, add the frozen marshmallows, vanilla and walnuts. Pour into one 9x13x2 inch and one 8-inch square pan. Refrigerate at least 1 1/2 hours before serving. Keep refrigerated until ready to serve.