Add all "Chocolate Base" ingredients to a blender and blend until smooth
Pour mixture into your Ninja Creami pint. Place in the freezer and let it freeze for 3-4 hours.
Now blend together your "Vanilla Base" ingredients.(If making ahead of time, store the vanilla mixture in the refrigerator until your chocolate base is ready.) After freezing the Chocolate Base, pour the Vanilla Base over top and place back in the freezer for 24 hours.
Once frozen, remove your pint from the freezer. Run the outside of the pint under hot water for 1-2 minutes.
Spin on Lite Ice Cream mode.
Respin 1-2 times until you reach your desired consistency.
Take one Oreo, remove the creme, and crumble the two cookie pieces over your ice cream.
Enjoy!