Line and grease a 22cm round springform pan or cake tin with a loose bottom and set aside.
Crush the Oreos and mix with the melted butter. Press into the base of the prepared pan. and place in the fridge while you make your cheesecake filling.
Line the side of the cake pan with fingers of KitKats. I take two fingers and sit them on the Oreo base with the KitKat writing facing outwards. This will take around about 300g of KitKats.
Place in the fridge while you make your cheesecake filling.
Cheesecake;
Beat the softened cream cheese until no lumps remain.
Beat in the icing sugar and vanilla extract and beat until smooth.
Add in the cream and beat until the mixture becomes creamy and slightly stiff.
Lightly crush and break into small pieces, 190-200g of the Kitkats and add to the cheesecake mixture and stir through.
Pour the mixture over the Oreo crust and spread into an even layer.
Allow to set for at least four hours but it tastes better if it has rested overnight.
Before serving, decorate with crushed KitKats or decorate however you desire.