I hope this is the recipe that you are looking for....

Double Decker Fudge

2 cups (12 oz package) Reese's peanut butter chips, divided
1/4 cup butter, melted
1/2 cup Hershey's cocoa
1 teaspoon vanilla
4 1/2 cups sugar
1 (7 oz) jar marshmallow creme
1 1/2 cups (12 oz can) evaporated milk
1/4 cup butter

Line a 9 x 13 x 2-inch pan with foil.

Place 1 cup peanut butter chips in medium bowl; set aside.

In second medium bowl, blend 1/4 cup melted butter, cocoa and vanilla until smooth; add 1 cup peanut butter chips.

In heavy 4-quart saucepan, combine sugar, marshmallow creme, evaporated milk and 1/4 cup butter. Cook, stirring constantly, over medium heat until mixture comes to a rolling boil; boil and stir 5 minutes. Remove from heat, immediately add half of hot mixture to bowl with peanut butter chips only. Pour remainder into cocoa mixture; stir to blend. Beat peanut butter mixture until chips are completely melted; spread evenly in prepared pan.

Beat cocoa mixture until chips are melted and mixture thickens. Spread evenly over top of peanut butter layer. Cool; remove from pan. Remove foil; cut into squares. Store in airtight container in a cool, dry place. About 4 pounds.