Ice Cream In A Bag: What to Try First

Ice cream in a bag scales up nicely for a party with a little planning. The method is forgiving, so small changes are fine. The rest of this article covers ice cream in a bag in plain, practical terms.

Planning quantities

It helps to remember that the base is straightforward. For one serving, combine about half a cup of half-and-half or whole milk, a tablespoon of sugar and a quarter teaspoon of vanilla extract in a modest zip-top bag. Press out the air and seal it tightly. Doubling the minor bag, or using heavy-duty freezer bags, helps prevent salty water from leaking in.

None of this needs to be exact; small changes in fruit or sugar are part of the fun.

Making it in batches

Worth keeping in mind: the outer bag holds about three cups of ice and a third of a cup of coarse salt, such as rock salt or kosher salt. Salt lowers the temperature at which ice melts, so the ice and salt mixture becomes much colder than ice alone. That extra cold pulls heat from the milk quickly enough for it to freeze while being shaken.

Freezer space

Place the sealed minor bag inside the large bag, seal it and shake steadily for five to ten minutes. The outer bag becomes very cold, so wrapping it in a kitchen towel or wearing gloves protects modest hands. Children can take turns shaking and feeling the bag change from liquid to soft and thick.

The practical takeaway is to taste the mixture before it goes in the freezer, since cold dulls sweetness.

Serving ideas

Worth keeping in mind: when the ice cream reaches a soft-serve texture, remove the small bag and rinse the outside quickly under cold water to wash off the salt before opening. Eat it right away, since it melts fast and does not hold well in the freezer. Flavors can be changed with cocoa powder, a spoonful of fruit puree or crushed cookies stirred in at the end.

Keeping it cold

More often than not, making ice cream in a bag is part dessert and part science lesson. Children shake a minor bag of sweetened milk inside a larger bag filled with ice and salt, and within minutes the liquid thickens into soft ice cream. It is a memorable way to show how freezing works.

The practical takeaway is to taste the mixture before it goes in the freezer, since cold dulls sweetness.

Practical tips

Here are a few easy places to start:

• Run molds under warm water for a few seconds to release them.
• Taste the mixture before freezing; it will taste less sweet once frozen.
• Chill the base in the fridge before it goes in the freezer.
• Keep the freezer door closed as much as possible while things set.

The bottom line

The best recipe is the one you will make again. None of this needs to be perfect. A simple recipe made with good fruit will beat a complicated one.