Place the milk, sugar, vanilla and food colouring of your choice into a medium zip-seal bag, then place this in a second bag to double bag it.

Squeeze the air out, close and secure with sticky tape if the seal isn’t strong.

Tip the ice and salt into a large zip-seal bag, then place the medium bag containing the milk inside and seal well.

You will need to keep the bag moving for 10-15 mins to freeze the milk. Gently throw the bag from hand to hand or take turns shaking it – it’s a good idea to wear gloves to keep your hands warm!

Remove the ice-cream bag, open and scoop into bowls. Sprinkle with hundreds & thousands.