- Plastic
Bag Ice Cream
Yes, it sounds dangerous and
the potential for messes seems highly likely, but you'll be surprised
at the good, "clean" fun you'll enjoy when you make
ice cream. This recipe is enough for one person to make a dish!
- 1/2 cup milk
- 1/2 teaspoon vanilla
- 1 tablespoon sugar
- 4 cups crushed ice
- 4 tablespoons salt
- 2 quart size Zip-loc bags
- 1 gallon size Zip-loc freezer
bag
- a hand towel or gloves to
keep fingers from freezing as well!
Mix the milk, vanilla and sugar
together in one of the quart size bags. Seal tightly, allowing
as little air to remain in the bag as possible. Too much air
left inside may force the bag open during shaking. Place this
bag inside the other quart size bag, again leaving as little
air inside as possible and sealing well. By double-bagging, the
risk of salt and ice leaking into the ice cream is minimized.
Put the two bags inside the gallon size bag and fill the bag
with ice, then sprinkle salt on top. Again let all the air escape
and seal the bag. Wrap the bag in the towel or put your gloves
on, and shake and massage the bag, making sure the ice surrounds
the cream mixture. Five to eight minutes is adequate time for
the mixture to freeze into ice cream.
Tips
Freezer bags work best because
they are thicker and less likely to develop small holes, allowing
the bags to leak. You can get away with using regular Zip-loc
bags for the smaller quart sizes, because you are double-bagging.
Especially if you plan to do this indoors, we strongly recommend
using gallon size freezer bags.
Here are some interesting
tidbits:
What does the salt do?
Just like we use salt on icy
roads in the winter, salt mixed with ice in this case also causes
the ice to melt. When salt comes into contact with ice, the freezing
point of the ice is lowered. Water will normally freeze at 32
degrees F. A 10% salt solution freezes at 20 degrees F, and a
20% solution freezes at 2 degrees F. By lowering the temperature
at which ice is frozen, we are able to create an environment
in which the milk mixture can freeze at a temperature below 32
degrees F into ice cream.
Who invented ice cream?
Legend has it that the Roman
emperor, Nero, discovered ice cream. Runners brought snow from
the mountains to make the first ice cream. In 1846, Nancy Johnson
invented the hand-cranked ice cream churn and ice cream surged
in popularity. Then, in 1904, ice cream cones were invented at
the St. Louis World Exposition. An ice cream vendor ran out of
dishes and improvised by rolling up some waffles to make cones.
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RECIPE POSTED NOVEMBER 03,
2003
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