^Made yummiest basic protein shake in my Ninja Kitchen Master Prep: 2 cups ice, 2 cups water, 4 scoops vanilla protein powder, 1 1/2 cups powdered milk, and a bit of non-dairy creamer (makes that smooth "shake" feeling). A few long pulses, and it was done. Guzzled down happily by 3 generations, top to bottom of the glass.^