Step 1

Line an 8x8 or 9x9 inch square pan with aluminum foil.

Step 2

In a medium bowl stir together the Oreo crumbs and melted butter.

Step 3

Press into the bottom of the prepared pan and place in the freezer while you make the filling.

Step 4

In a large bowl beat the whipping cream and 1/4 cup of the powdered sugar until stiff peaks form.

Step 5

In a separate bowl beat together the cream cheese and remaining powdered sugar (3/4 cup) until soft. Then beat in the sour cream, melted chocolate and vanilla extract.

Step 6

Mix the whipping cream into the cream cheese mixture until evenly combined.

Step 7

Spread the filling overtop of the Oreo cookie crust and place the cheesecake in the fridge for at least 4 hours to harden.