Add the cottage cheese, milk, sugar, and vanilla extract to your Ninja Creami pint. Stir to combine.
Freeze on a level surface for at least 18 hours.
Remove from the freezer and let slightly thaw on the countertop or run a little warm water along the outer edge for 30 seconds.
Process on the Light Ice Cream setting. If needed, add a splash of milk and respin.
Cut 3 Golden Oreos into small pieces. Create a hole in the center of your ice cream and add the Oreo pieces. Use the mix-in function on the Ninja Creami.
If desired, top with the remaining Oreo.
Notes
If you have leftovers, smooth out the top and return to the freezer. You may need to process again before enjoying.
Since this recipe uses cottage cheese for protein and creaminess, I use a low-acid cottage cheese that isn't tangy. This is important, or else your ice cream will have a tangy slight sourness.