Preheat the oven to 325
In double boiler, add about a cup of water to the bottom pot, bring to a boil then turn off. mixture.
Place the top pot over it and add your cream and chocolate chips to the top pot. Mix until fully melted and set aside.
In a food processor chop the chocolate cookies into a fine crumb. Then mix in melted butter until mixed.
Grease your cheesecake pan well then pack the cookie crumb mixture on the bottom of the pan. Set in freezer.
In the food processor or mixer, beat the cream cheese until it is smooth.
Add in the sweetener, cocoa powder, vanilla, and eggs and mix again. Scrape down the sides to make sure it all gets mixed in.
Stir in the chocolate into the cheesecake mixture a few spoonfuls at a time until it is all mixed in.
Pour cheesecake mixture over crust.
Wrap pan in foil and place inside another baking dish. Fill the other dish with water till it is about 1/4 inch below the top of the foil
Place in center of the preheated oven. Bake 1 hour and 10 minutes. Then turn off the oven, leave the door closed and allow to sit in the oven for another 20 minutes.
Then remove from oven and place on the counter to cool for one hour.