In a medium bowl, whip the heavy cream until stiff peaks form, about 3-5 minutes.

In a separate bowl, combine the creamy peanut butter, softened cream cheese, powdered sugar, and vanilla extract (if using). Mix until smooth and creamy.

Increase the mixer speed to high and whip the mixture for about 1 minute until light and fluffy.

Gently fold the whipped cream into the peanut butter mixture with a spatula.

Pour the mixture into the Oreo pie crust, spreading it evenly.

Freeze the pie for 1 hour or refrigerate for 4 hours until fully set.

Optional: Add toppings like crushed nuts or chocolate drizzle before serving.