Place the lid on your cup, and then set your pint cup in the freezer on a level surface. Let it freeze for at least 24 hours before spinning.
When ready to eat, remove the pint from the freezer. Take off the lid and inspect the top to make sure it's mostly flat. If you have a large hump, especially if it is off-center, use a spoon or vegetable peeler to scrape down the hump to make the top as level as you can.
Install your pint cup as directed by the model of your Ninja Creami. Press "Lite Ice Cream" for your first spin. Check on the texture of your ice cream after its spin. Spin again if necessary using the "Re-Spin" button.
Your ice cream should now be ready to enjoy! Top with your favorite toppings, like salted peanuts, mini peanut butter cups, m&ms, chocolate syrup, graham crackers, or just enjoy it plain.
Video
Notes
For this recipe, I use nonfat (skim) Fairlife milk. Fairlife is ultra-filtered, which increases the protein and lowers the sugars making for a creamier milk in spite of it being nonfat. This is what I prefer for all my Ninja Creami recipes. Regular milk is fine, too, and will yield similar results with slightly altered nutritional info.I recommend using sugar-free toffee-flavored syrup specifically, such as Torani. Toffee is very complimentary to peanut butter flavoring and will help it stand out.