1 c. peanut butter chips
2 1/4 c. sugar
3/4 c. evaporated milk
1 tsp. vanilla
1 c. semi-sweet chocolate chips
7 oz. marshmallow creme
1/4 c. butter

Measure peanut butter chips into 1 bowl and chocolate chips into another; set aside. Butter 8 inch square pan; set aside.

Combine sugar, marshmallow creme, evaporated milk and butter in heavy 3 quart saucepan. Cook over medium heat, stirring constantly, until mixture boils; continue cooking and stirring for 5 minutes. Remove from heat; stir in vanilla. Immediately stir half the hot mixture into the peanut butter chips until completely melted. Quickly pour into prepared pan. Stir remaining mixture into chocolate chips until completely melted. Quickly spread on top of peanut butter layer; cool. Cut into 1 inch squares.