Add all ingredients to a Ninja Creami pint jar, and mix until well combined and smooth.
Cover and freeze for 24 hours.
Remove jar from the freezer, and insert into the Ninja Creami machine.
Spin once on the 'Lite Ice Cream' setting.
Add 2 tablespoons milk, and spin again on the 'Re-Spin' setting.
If desired, add any toppings (like chocolate, nuts, cookies, or candy) and spin one more time on the 'Mix-In' setting.
Enjoy immediately.
