Note* The bag/container sizes are typically a smaller sandwich size bag and a larger gallon (4.5L) one. I've avoided using single-use plastic bags and instead use reusable ones. However, for your larger container, it's worth noting that you just need any container where the ice and salt can surround the smaller bag i.e. a large glass jar/ can.
The first thing to do is to prepare your ice-cream mix. Begin by mixing the double cream and whole milk together. I'm using vanilla pods but it's optional for you to use. You can also use homemade vanilla extract for this vanilla ice-cream or, you can experiment with other flavours including strawberry, chocolate ( with chocolate chips), peanut butter etc.*
Mix all the ingredients until you get a creamy ice-cream base.
After the ingredients are mixed, placed into the smaller reusable plastic bag. Make sure to get out as much of the excess air from the bag when sealing it and seal tightly, to avoid any leaking.
In the larger bag (or container of your choice - such as glass jar/can), place the ice and salt. Add the smaller bag into the large bag full of ice and salt and shake, shake, shake that bag.The key is to keep the mixture in contact with the ice as much as possible. To do this you can even roll the ice over the mixture too (just make sure to use a tea towel, if needed as it will be very cold).You can usually feel the mixture hardening but may want to open the bag quickly and check. If it's not ready just re-close the bags and continue to shake. **
Voila! Your homemade ice-cream in a bag is ready. Serve with some crushed pistachios, a bit of whipped cream or any of your favourite toppings and you're ready to eat the fruits of your labour.
* For a super simple flavoured ice-cream you could use store-bought flavoured milkshake as your 'milk', combined with the cream and a little bit of sugar** The more ice-cream you make - the longer you'll need to shake it sometimes up to 10-15 minutes. Try to get your family/friends involved then if you can (in fact, kids will love helping with this recipe and they can each make their own ice-cream!)