In a blender, combine the "Ice Cream Base" Ingredients. Blend until smooth and fully combined.
Pour the mixture into your Ninja Creami pint and freeze on a level surface for 24 hours.
Take the pint out of the freezer. Run it under hot water for 1-2 minutes on all sides.
Spin on Light Ice Cream mode.
Respin 1-2 times until it reaches a smooth, creamy consistency.
If there isn’t already a hole in the center of the ice cream, use a spoon to create a well.
Add 4 Oreo cookie halves into the well. Spin again on Mix-In mode.
Crumble the remaining 2 Oreo cookie halves on top and enjoy!