Take 3 Oreos from a sleeve and put them in a food processor. Pulse the Oreos until they are very finely ground.
In a stand mixer, place the cream cheese, powdered sugar, ground up Oreos, and vanilla extract. Mix on medium speed until all of the ingredients have combined. Then, turn the mixer to low and begin to slowly pour in the heavy whipping cream. Once the mixture looks like it is combined, turn the mixture to high speed and whip until stiff peaks form.
Cover the bottom of a 8x8 glass pan with a thin layer of the cream.
Then cover the bottom of the pan with 16 Oreos.
Scoop 2 cups of the cream on top of the Oreos and then layer another 16 Oreos on top of the cream.
Pour the remaining cream on top of the Oreos.
In a food processor or by hand crush up 4 Oreos into small pieces and then top the icebox cake with them.
Put the Cookies & Cream Icebox Cake in to the fridge overnight for best results,