1. Preheat your oven to 350°F (175°C).
2. In a medium bowl, combine the graham cracker crumbs and melted butter. Press the mixture into the bottom of a 9-inch pie pan to form the crust.
3. Bake the crust for 10 minutes or until lightly golden. Let it cool completely.
4. In a large mixing bowl, beat the peanut butter and cream cheese together until smooth. Add the powdered sugar and vanilla extract, beating until fully combined.
5. In a separate bowl, whip the heavy cream until stiff peaks form. Gently fold it into the peanut butter mixture, maintaining as much air as possible.
6. Pour the peanut butter filling over the cooled crust, smoothing the top with a spatula.
7. To make the chocolate ganache, heat the remaining heavy cream in a saucepan until just boiling. Pour it over the chopped chocolate and let sit for a minute. Stir until smooth and glossy, adding a pinch of salt to enhance the flavor.
8. Pour the ganache over the peanut butter layer, spreading it evenly.
9. Refrigerate the pie for at least 2 hours, or until set.

Remember, patience is key — a lesson learned from many hours spent in the kitchen with my abuela. Allowing the pie to set will ensure each bite is perfect.