Preheat your oven to 325°F (160°C).
Prepare the crust by mixing cookie crumbs and melted butter in a bowl.
Press the crumb mixture firmly into the bottom of a springform pan.
In a large mixing bowl, beat the softened cream cheese until smooth.
Add sugar, sour cream, and vanilla extract to the cream cheese, and mix well.
Incorporate melted dark chocolate into the cream cheese mixture, blending until combined.
Add eggs one at a time, mixing well after each addition.
Gently fold in the raspberries, being careful not to break them.
Pour the filling over the crust and smooth the top.
Bake for 55-60 minutes or until the edges are set but the center jiggles slightly.
Turn off the oven and let the cheesecake cool in the oven with the door ajar for an hour.
Refrigerate for at least four hours before serving.