In a mixing bowl, combine the crushed chocolate graham crackers with melted unsalted butter. Stir until evenly coated. Press this mixture into a 9-inch pie dish to form the crust.
In another bowl, beat the softened cream cheese until smooth and creamy.
Add the powdered sugar to the cream cheese and mix until fully incorporated.
In a separate bowl, whip the heavy whipping cream until stiff peaks form.
Gently fold the whipped cream into the cream cheese mixture until no streaks remain.
Add the mint extract and cocoa powder, stirring gently to combine.
Fold in the semi-sweet chocolate chips.
Pour the cheesecake filling into the prepared crust and smooth the top. Cover with plastic wrap and refrigerate for at least 4 hours or overnight.
Garnish with fresh mint leaves and additional chocolate chips before serving.
Slice and serve chilled.
Notes
This pie can be stored in an airtight container in the refrigerator for up to 4 days.