- Plastic Bags
- Vanilla Extract
1. Mix ingredients for ice cream in one bag.
2. Mix salt and ice in other bag.
3. Put ice cream bag into salt and ice bag.
4. Shake until ice cream forms.
5. Take out ice cream.
Caution: If lactose intolerant or diabetic, do not consume. Make sure ice cream is not contaminated by salt.
Links that explain what to do.Very well.
This involves thermodynamics. The salt lowers the freezing temperature of the ice. Apparently, using rock salt doesn't lower it as much as table salt (surface area, no doubt), allowing it to freeze slower and smoother. The ice starts melting and the heat is transferred from ingredients to icy water.
Photo Credit: Suleiman Jweinat