If your looking for a quick and easy ice cream recipe using the ninja master prep, your going to love this one. All you need is 1 thats right ONE ingredient to make your very own homemade ice cream, are you ready for it? All you need is frozen bananas!! You can cut up 2 to 3 bananas, freeze them for 1 to 2 hrs. Then blend them all up in the ninja master prep, and there you have it!! Fresh ice cream, you can use a little milk of you want to, but its not necessary.