Follow these simple steps to create your Peppermint Chocolate Cheesecake:

1. Preheat the oven: Preheat your oven to 325°F (160°C).
2. Prepare the crust: In a medium bowl, combine chocolate cookie crumbs, melted butter, and granulated sugar. Mix well until the crumbs are fully coated with butter.
3. Form the crust: Press the mixture firmly into the bottom of a 9-inch springform pan, ensuring it’s even and well-packed. Bake for 10 minutes, then remove from the oven and allow it to cool while preparing the filling.
4. Make the filling: In a large mixing bowl, beat the softened cream cheese until smooth. Gradually add granulated sugar and continue to beat until well combined and fluffy.
5. Add flavorings: Mix in vanilla extract, peppermint extract, and cocoa powder until fully incorporated.
6. Incorporate eggs: Add the eggs one at a time, mixing on low speed after each addition. Be cautious not to overmix.
7. Add sour cream: Gently fold in the sour cream and melted chocolate until smooth.
8. Pour filling: Pour the filling into the cooled crust and smooth the top with a spatula.
9. Bake: Place the cheesecake in the preheated oven and bake for about 50-60 minutes. The center should be set but slightly jiggly.
10. Cooling: Turn off the oven, crack the oven door, and let the cheesecake sit in the oven for 1 hour. This helps prevent cracks. Once cooled, transfer it to the refrigerator to cool completely for at least 4 hours or overnight.
11. Prepare the topping: Before serving, top the cheesecake with whipped cream, crushed peppermint candies, and shaved chocolate as desired.