Creating Chocolate Raspberry Cheesecake is a delightful process. Follow these steps for best results:

1. Preheat the Oven: Preheat your oven to 325°F (160°C).
2. Prepare the Crust: In a medium bowl, combine graham cracker crumbs, sugar, and melted butter. Mix until fully combined.
3. Form the Crust: Press the mixture firmly into the bottom of a 9-inch springform pan. Bake for 10 minutes, then remove and allow to cool.
4. Make the Filling: In a large mixing bowl, beat the softened cream cheese until smooth. Gradually add sugar and vanilla extract, mixing until well combined.
5. Add Eggs: Add eggs one at a time, mixing on low speed after each addition until just combined. Do not overmix.
6. Incorporate Sour Cream: Add the sour cream and melted chocolate, mixing until smooth and creamy.
7. Fold in Raspberries: Gently fold in the fresh raspberries, being careful not to break them apart.
8. Pour into Crust: Pour the cheesecake filling into the cooled crust, smoothing the top with a spatula.
9. Bake: Place in the preheated oven and bake for 50-60 minutes, or until the edges are set and the center is slightly jiggly.
10. Cool: Turn off the oven and crack the door, allowing the cheesecake to cool in the oven for about an hour. Then, refrigerate for at least 4 hours or overnight to set.
11. Prepare the Topping: Before serving, top with fresh raspberries and drizzle with chocolate ganache if desired.

These straightforward steps will guide you in creating a stunning Chocolate Raspberry Cheesecake that is sure to delight.