The title of this recipe is really a bit of a lie; it's not really instant and in some cases it's not technically even ice cream. Regardless, this is a fun way to make ice cream quickly without any expensive gadgets.
Because of the way its made this ice cream isn't as smooth and creamy as the regular ice cream you'd make at the store, but the fun involved in shaking your own ice cream makes this food experiment well worth it.
Ingredients 1/2 cup milk
1 tablespoon sugar
Vanilla bean paste
You'll also need 2 cups of ice
6 tablespoons of rock salt
1 large ziplock bag
1 sandwich sized ziplock bag
Prepare your ice cream mixture by combining the milk, sugar and vanilla bean paste in a bowl. Pour it into the smaller sandwich sized bag and then leave it in the fridge till you're ready. Make sure that the bag is zipped tight and that nothing can leak in or out.
In the larger bag combine the ice and the salt. The salt helps reduce the freezing temperature of the ice. This means your ice stays cooler for longer and can freeze the milk mix when you combine the two.
Place the smaller bag with the ice cream mix inside the larger bag, then make sure you zip the large bag tight.
Now you just need to shake the bag for about 15 minutes. It helps to wrap it up in a tea towel first. If you're just making one batch pass the bag around and let everyone have a shake, or you can make everyone their own bag of ice cream to shake and make.
Once your 15 minutes is up, unzip your first bag and give it a good wipe down. The bag will be covered in salty water and you want to make sure none of that salty water gets into your ice cream. At 23 I still remember the one time my mum accidentally got some salt in the homemade ice cream; for at least 10 years I just thought that was what home made ice cream tasted like.
Empty your ice cream in the bowl and give it a bit of a stir with a spoon to combine it properly. Then eat it out of the bowl with your favourite toppings or sprinkles, or scoop it into a cone and enjoy.