Chocolate peanut butter fudge pie

I decided to do an experiment: I wanted to turn my peanut butter fudge into a chocolate peanut butter pie. To make you will need the following ingredients:

1 pastry pie shell(baked according to directions on pkg and cooled)
1c peanut butter(any brand)
16oz(2c) powdered sugar
1/3c milk
2tbs butter(margarine)
1 pkg chocolate pudding/pie mix

First we make the peanut butter fudge:
Add 16oz(2c) powdered sugar to a large microwave safe mixing bowl. Add 1/3c milk. Add 2tbs butter(margarine). Microwave for 2mins. Remove and stir well. Microwave for 30secs more. Stir until smooth. Add 1c peanut butter. Mix until smooth. Spread into the baked and cooled pie shell. Refrigerate 1hr. Now we're going to make the chocolate pie filling. Pour 1 and 1/2c milk into a large mixing bowl. Add the packet of chocolate pie/pudding mix. Whisk until well blended. Spread on top of peanut butter in pie shell. Return to fridge for another hr. After 1hr its ready to serve. Serve alone or topped with cool whip. Enjoy!

Note: I always use creamy peanut butter in both fudge recipes. Not sure if you use crunchy how it would turn out.