4 c. sugar
2 tbsp. cocoa
2 tbsp. light corn syrup
1 tsp. vinegar
1 c. evaporated milk
1 pt. marshmallow fluff
1 pt. peanut butter

Combine first 5 ingredients in heavy saucepan. Bring to a rolling boil, boil 3 minutes. Remove from heat, add marshmallow fluff and peanut butter. Mix well. Pour into buttered 9"x13" pan. Cool.