Homemade Ice Cream

  • Due No due date
  • Points _
  • Questions 4
  • Time Limit None


Using salt, you can lower the melting point of ice to create fun and tasty ice cream!

Your Instructor: University of Utah College of Science

Difficulty: Medium

Length of Activity: 30 Minutes 


  • 1/2 cup milk or cream
  • 1 tablespoon sugar
  • Flavoring: 1/2 teaspoon vanilla, 1 tablespoon chocolate or strawberry syrup
  • Enough ice to fill a gallon Ziploc bag
  • 6-7 tablespoons Kosher salt (generally larger crystal salt works better)
  • Pint-sized Ziploc bag

Follow Along Below

Written Instructions (Printable PDF)

  1. Mix milk, sugar, and flavoring in a pint-sized Ziploc bag.
  2. Add ice and salt to a gallon-sized Ziploc bag.
  3. Shake both bags a few times so everything is evenly distributed in each bag.
  4. Put the sealed pint-sized bag into the gallon bag, making sure that the ice completely covers the pint bag.
  5. Seal the gallon Ziploc bag and shake until milk turns to ice cream consistency. The bag will get very cold, so it’s a good idea to wear gloves while shaking!