Heat the heavy cream in a small saucepan over medium heat until it just begins to simmer (don’t let it boil). Pour the hot cream over the chopped bittersweet chocolate in a heatproof bowl. Let it sit for 2-3 minutes, then stir until smooth and fully combined to create a ganache. Set the ganache aside to cool for about 10 minutes before using.
8 oz semi sweet chocolate chips, ½ cup heavy cream
In a large bowl, beat the softened cream cheese until smooth and creamy. Add the granulated sugar, cocoa powder, and vanilla extract, beating until fully combined and fluffy.
24 oz cream cheese, ½ cup granulated sugar, ⅓ cup unsweetened cocoa powder, 1 teaspoon vanilla extract
In another bowl, whip the heavy cream and powdered sugar until stiff peaks form.
⅓ cup powdered sugar, 1 cup heavy cream
Gradually beat the melted chocolate mixture into the cream cheese mixture until incorporated. Gently fold the whipped cream into the chocolate mixture until smooth and airy.
Spread the cheesecake filling evenly over the chilled Oreo crust, smoothing the top with an offset spatula. Place the cheesecake in the fridge to set for at least 6 hours or overnight.