This is a diy thing that. I learned in class, ice cream.
Step 1- Have a gallon and quart sized ziploc bag.
Step 2- Put 1/2 cup of milk, 2 tsp.of sugar, and a little dash of vanilla. In the quart sized bag.
Step 3- Put ice and 1/4 of cup of rock salt in the gallon sized bag.
Step 4- Put the small bag in the big bag. And shake.
The longer u shake the thicker it is.
