I have done this, but if you just put a muller in it turns pretty hard and icy....but if you want it to be an icecream consistency, you have to put it in the freezer and try to stir it every 30 mins or so (if you have the time obv!).
If you do this, it breaks the hard ice crystals up and makes it much more soft and easier to eat, just like icecream woo woo!!! xx