Creating a Dark Chocolate Cheesecake may sound daunting, but with these steps, you will have a delicious dessert ready in no time:

1. Preheat Oven: Preheat your oven to 325°F (160°C). This low temperature will help the cheesecake cook evenly.
2. Prepare the Crust: In a mixing bowl, combine the chocolate cookie crumbs with ½ cup sugar and melted butter. Mix until well combined.
3. Form the Crust: Press the crust mixture into the bottom of a 9-inch springform pan, ensuring it’s firm and evenly distributed. Set aside.
4. Mix Cream Cheese: In a large bowl, use an electric mixer to beat 2 cups of softened cream cheese until smooth and creamy.
5. Add Chocolate: Gradually add the melted dark chocolate to the cream cheese mixture and beat until combined.
6. Incorporate Sugar and Eggs: Add 2/3 cup sugar and mix well. Then, add the eggs one at a time, mixing well after each addition.
7. Flavoring: Stir in the vanilla extract, sour cream, and heavy cream until fully incorporated.
8. Thickening (Optional): If you prefer a thicker cheesecake, add 1 tablespoon of all-purpose flour and mix until smooth.
9. Bake: Pour the cheesecake filling into the prepared crust. Bake in the preheated oven for 60 minutes. The center should be set but still slightly wobbly.
10. Cool: Turn off the oven and crack the oven door, letting the cheesecake cool inside for about 1 hour. This will prevent cracking.
11. Chill: Remove the cheesecake from the oven and refrigerate for at least 4 hours or overnight before serving to allow it to set properly.
12. Serve: When ready to serve, carefully remove the springform pan sides. Slice the cheesecake and enjoy.