Separate the cookie and cream.
Grind cookies into powder.
Add cream cheese in to cookie powder and mix well.
Take a small portion and shape them into balls and refrigerate for 20-30 minutes.
Add cadbury dairy milk in to a bowl and microwave for 30-40 seconds.
Dip all balls in to melted cadbury dairy milk one by one and refrigerate for 20 minutes.
Dust plate with cadbury cocoa powder. Arrange oreo cookie balls on the plate and serve.