To make the vanilla base, start by softening the cream cheese.
Place it in a microwave-safe bowl and microwave for 10 seconds.
Add sugar and vanilla to the bowl.
Whisk until fully mixed and smooth. Next, add heavy cream and milk, then whisk again.
Pour the mixture into the Ninja Creami container. Be careful not to exceed the fill line.
Place the container in your freezer on a flat surface. Freeze for at least 24 hours. After freezing, put the container into the Ninja Creami.
Set the machine to the ICE CREAM setting.
While the machine processes, cut each Oreo into four pieces. Make a small hole in the center of the ice cream.
Add the Oreo pieces to the hole. Use the MIX-IN feature on the Ninja Creami to blend the cookies.
Enjoy right away or place the ice cream back in the freezer for later.