Making school made ice cream

Today in science we made ice cream. First, we had to get a big bag with ice in it. Then, we had to put 6 spoon fulls of salt in the bag with ice in it. Next, we got a little bag and put 1 spoon full of sugar in it,then 1 tea spoon of vinilla, last we put some milk in the little bag ( I forgot how much). Then, we put the small bag in the big bag and shook it up. It was really cool!