Follow these simple steps to create your delicious Chocolate Peanut Butter Cheesecake:

1. Preheat the Oven: Preheat your oven to 325°F (160°C). Grease a 9-inch springform pan to prepare for the crust and filling.

2. Make the Crust: In a mixing bowl, combine the chocolate cookie crumbs, melted butter, and granulated sugar. Mix well until combined. Press the mixture firmly into the bottom of the prepared springform pan.

3. Bake the Crust: Place the crust in the preheated oven and bake for 10 minutes. Once finished, remove it and allow it to cool while you prepare the filling.

4. Prepare the Filling: In a large mixing bowl, beat the softened cream cheese and peanut butter together until smooth. Gradually add the powdered sugar and mix until fully incorporated.

5. Add Sour Cream and Vanilla: Add the sour cream and vanilla extract to the cream cheese mixture. Beat until smooth and creamy.

6. Incorporate Eggs: With the mixer on low speed, add the eggs one at a time, mixing just until combined. Do not overmix.

7. Pour the Filling: Pour the peanut butter cheesecake filling over the cooled crust, spreading it evenly with a spatula.

8. Bake the Cheesecake: Bake in the oven for about 50-60 minutes, or until the center is set but still slightly jiggly. Remove from the oven and let it cool at room temperature for 30 minutes.

9. Chill the Cheesecake: Refrigerate the cheesecake for at least 3 hours, preferably overnight, to allow it to set properly.

10. Make the Ganache: Before serving, prepare the chocolate ganache. In a small saucepan, heat the heavy cream over medium heat until just simmering. Remove from heat and add the chocolate chips. Stir until the mixture is smooth and glossy.

11. Top the Cheesecake: Remove the cheesecake from the springform pan and transfer it to a serving platter. Pour the ganache over the top, allowing it to drizzle down the sides.

12. Garnish: If desired, sprinkle with chopped peanuts, whipped cream, or chocolate shavings for an extra touch of indulgence.