Separate the cookies from the cookie filling and set aside. In a food processor blitz the cookies until they are finely crumbled.
Add the butter and sugar, molten butter works best but room temperature will also blend well. Blitz until well combined
Tightly pack the mixed oreo crumble in to an 8 Inch spring form or a 9 x 9 brownie form. If you don't use a spring form, line your form with parchment paper. It will make removing much easier. Using the back of a glass or mug, press and compact as much as you can. Then bake for 10 minutes at 175 C or 345 F
Cream Cheese Filling
Combine the room temperature cream cheese, oreo filling, sugar and vanilla extract and whisk until smooth. Now add in the flour and whisk in slowly. Whisk in the egg's until smooth and well combined and then fold in the chocolate chips. Pour over the oreo base
Now bake the cheesecake for approximately 45 minutes. The edges should have a light golden brown colour and the center is a bit bubbly and not brown.