Place condensed milk, nutella, cream, milk and vanilla extract into a 1L Sinchies Reusable Food Pouch.
Place ice cubes into the large zip-lock bag with the rock salt.
Place the 1L Sinchies Reusable Food Pouch into the large zip-lock bag.
Shake for 5-10 minutes until you get the consistency of ice cream (Do this outside as it can get a bit wet as the ice melts).
Once done you can eat it straight away.