Creating a sumptuous Dark Chocolate Cheesecake involves straightforward steps. Just follow these instructions to achieve the best results:

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

2. Make the Crust: In a mixing bowl, combine graham cracker crumbs and melted butter. Stir until until the mixture resembles wet sand.

3. Form the Crust: Press the crumb mixture evenly into the bottom of the prepared springform pan. Bake for 10 minutes, then set aside to cool.

4. Prepare the Cheesecake Filling: In a large mixing bowl, beat the softened cream cheese using an electric mixer until smooth.

5. Add Sugar: Gradually add granulated sugar while continuing to beat until well combined.

6. Incorporate Eggs: Add the eggs one at a time, mixing well after each addition. Ensure not to overmix.

7. Add Vanilla and Dark Chocolate: Stir in the vanilla extract and melted dark chocolate until fully incorporated.

8. Add Sour Cream and Salt: Mix in the sour cream and salt until smooth and creamy.

9. Pour the Filling: Pour the cream cheese mixture over the cooled crust in the springform pan.

10. Bake: Bake in the preheated oven for 50-60 minutes, or until the center is set but still slightly jiggly.

11. Cooling Stage: Turn off the oven and let the cheesecake cool in the oven with the door slightly ajar for 1 hour.

12. Chill: Remove the cheesecake from the oven and refrigerate for at least 2-3 hours, preferably overnight, to allow it to set completely.