1/2 lb. marshmallows
3 (6 oz.) pkg. chocolate chips
2 c. chopped nuts
1 c. butter
1 tsp. vanilla
4 1/2 c. sugar
1 lg. can evaporated milk

Mix marshmallows, chocolate chips, nuts, butter and vanilla in large bowl; set aside. Mix sugar and milk in large saucepan. Bring to boil, boil for exactly 12 minutes, stirring constantly. Pour over marshmallow mixture, stir until well mixed. Pour into 13 x 9 x 2 inch pan and chill for at least 24 hours.