Prepare the Crust: In a mixing bowl, combine the chocolate graham cracker crumbs and melted butter. Stir until the crumbs are evenly moistened. Press this mixture firmly and evenly into the bottom of a 9-inch springform pan to form a solid crust. Place the pan in the refrigerator to chill while you prepare the filling.
Make the Cheesecake Filling: In a large mixing bowl, combine the softened cream cheese and creamy peanut butter. Use an electric mixer to beat the mixture on medium speed until it reaches a smooth and creamy consistency. Gradually add in the powdered sugar, mixing well after each addition, then stir in the vanilla extract to combine.
Whip the Heavy Cream: In a separate chilled mixing bowl, use an electric mixer to whip the cold heavy cream until stiff peaks form—this may take a few minutes. Once whipped, gently fold the whipped cream into the peanut butter mixture using a spatula, being careful to maintain the lightness of the whipped cream.
Layer the Cheesecake: Pour the lightened peanut butter cheesecake filling over the chilled crust in the springform pan. Use a spatula to gently smooth the top for an even finish. Cover and refrigerate the cheesecake for a minimum of 4 hours or until it is fully set and firm to the touch.
Prepare the Chocolate Ganache: In a small saucepan over low heat, melt the semi-sweet chocolate chips, stirring constantly until smooth. Remove from heat and allow the ganache to cool slightly, which will thicken it. Drizzle the ganache over the set cheesecake, letting it cascade attractively down the sides.
Garnish and Serve: If desired, sprinkle the chopped salted peanuts on top for an added crunch and flavor contrast. Carefully release and remove the cheesecake from the springform pan. Slice into wedges and serve.
Notes
For an elegant touch, drizzle additional chocolate ganache over the top and finish with a sprinkle of chopped peanuts.