Homemade Ice Cream in a bag


materials neededToday I hosted a “Food Science” program at the library. The highlight of the program was making homemade ice cream in a bag. The ingredients used are ingredients that you would typically already have in your pantry or refrigerator at home. A long with the homemade ice cream, we conducted two other food science experiments. One being the infamous Diet Coke and Mentos experiment and the exploding bag experiment. Both were a huge hit.

Below is the recipe for the homemade ice cream, and I’ll have the other experiments posted soon as well. This is a great experiment to do with children especially on a warm day, they are amazed at the fact that THEY made their own ice cream.

Try making with different flavors. Chocolate works and I am hoping to try a mint chocolate chip over the Summer during a different program.

If you have a recipe for homemade ice cream (in a bag or not) send it our way, we’ll post it on our site!


Homemade Ice Cream in a Bag

  • Prep time:
  • Cook time:
  • Total time:
  • Yield: 4
  • Difficulty: easy
  • Recipe type: dessert


  • 1/2 cup whole milk
  • 1/2 cup heavy whipping cream
  • 1/4 cup sugar
  • 1/4 tsp vanilla
  • 1/2-3/4 cup ice cream salt (or cooking rock salt)
  • 2 – 3 cups of ice (you may need to add more as you shake)
  • 1 quart zip lock bag
  • 1 gallon zip lock bag


  1. Add 1/4 cup of sugar, 1/2 cup of milk, 1/2 cup of whipping cream, and 1/4 tsp vanilla in to the quart size zip lock bag. Seal TIGHT!
  2. Put 2 cups of ice and 3/4 cup of ice cream salt in to the gallon size zip lock bag.
  3. Place the sealed quart bag inside the gallon bag of ice and salt. Seal the gallon bag securely.
  4. Shake the bag in an up and down, side to side motion. Be careful not to shake TOO vigorously.
  5. Continue to shake for 10-15 minutes or until the contents of the quart bag have solidified into ice cream.
  6. Open the gallon bag and remove the quart size bag. rinse in cold water to remove salt from the outside of the bag.
  7. Serve and enjoy!

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