Break the Hershey’s bars into smaller pieces, place into a microwave safe bowl. Microwave for 20 seconds at a time stirring after each time until the chocolate is melted.
Add the cool whip to the melted chocolate and fold together with a spatula until well combined.
Place this mixture into the prepared pie crust. Place in the refrigerator for at least 4 hours.
Optional: top with chocolate shavings and chocolate bar pieces. Enjoy!