Crush the oreo biscuits, keep them coarse and finely powder a portion of it.
Retain some of the chunks for topping
For the rest of the steps, watch the video embedded here
Video
Notes
I have used unboiled milk for this, but make sure the milk is chilled before using.
Additionally vanilla extract may be added to this.
As the Oreo biscuits already had Cream and Sugar in it, nothing else was needed.
If you are scraping out the cream from the cookies before using, be sure to adjust the taste and if need be add more sugar and / or cream to the popsicle mix.