Anyway, this time I made another attempt with Oreo. :)
1) Separate the cream from the Oreo biscuits. (I used about 14 cookies)
6) Separate the mixture into two portions.
8) Take out the container from the freezer. It should harden by now. Spoon filling over crust. Use the back of the spoon to smoothen the surface of cake.
11) Cover and refrigerate it for at least 2 hours, or until firm.
Tata! Final output.. :) Not bad for first time attempt. hehehe.. The kids love it! Hubby says he prefers the lemon flavoured one. I like it both. :D