On a scorching hot day, ice cream brings much needed relief. If you’re out of pints, try this instant ice cream recipe that’s also fun to make with kids – and it teaches science at the same time.
Adding salt to ice causes an endothermic reaction – it absorbs energy and heat from the surroundings. This makes the cream mixture super-cold, and freezes it. Shaking the bag makes sure ice crystals stay small, giving you creamy ice-cream. The best part? It only takes 15 minutes!
For convenience, lay your ingredients out like this first: