Make Homemade Ice Cream in a Bag

Shake a bag of cream, sugar, and ice for 10 minutes, and you've got ice cream. Science, snack, and arm workout all in one.

This is one of those activities that feels like a magic trick. Simple ingredients, a zip-lock bag, some shaking, and suddenly: ice cream. Kids love the science, everyone loves the result.

What You Need

• 1 cup half-and-half or heavy cream
• 2 tablespoons sugar
• 1/2 teaspoon vanilla extract
• 3 cups ice
• 1/3 cup rock salt or kosher salt
• 1 quart-size zip-lock bag
• 1 gallon-size zip-lock bag
• Towel or gloves
• Toppings: sprinkles, chocolate chips, fruit

How To Do It

1. Mix the cream base — pour cream, sugar, vanilla into the small bag. Squeeze out air, seal tight.
2. Build the ice bath — fill the big bag halfway with ice, add rock salt
3. Bag in a bag — place the sealed cream bag inside the ice bag, seal it
4. Shake it — shake and massage for 8-10 minutes. Wrap in a towel. Put on music!
5. Check it — should be firm like soft-serve. Need more time? Shake 2-3 more minutes.
6. Rinse and eat — rinse salt water off the small bag, snip a corner, squeeze into bowl, add toppings

Pro Tips

Best time: Afternoon on a hot day — you'll want the cold treat.

Seasonal tip: Try seasonal mix-ins: strawberries in June, peaches in July, blueberries in August.

Good to know: Rock salt is in the hardware/ice-melt aisle, not cooking. Kosher salt works too.

Variations by Age

• Kids
• Teens
• Adults
• Seniors

Accessibility

Low-mobility: Roll bag on a table. Adaptive grip: Wrap in towel for better grip. Stroller-friendly: Sit-down activity, perfect near little ones.