4 cups unsweetened cream
1.5 cups half & half
1.75 cups sugar (or sugar-substitute)
1/2 tsp vanilla
liquid nitrogen, which can be obtained from, well, I don't know where he gets the stuff. You have to have an appropriate container to house it. Good luck with this part. I don't know about these things. Good thing I'm married to a nerd.
Tim measures ingredients.
He split the ice cream into 2 batches: one with sugar and one with sugar-substitute
stirring all the ingredients together.
You must use a metal or plastic bowl, and preferably a wooden spoon.
The liquid nitrogen will shatter some tools.
Pouring the liquid nitrogen into the cream-mixture.
Begin stirring as soon as liquid nitrogen is added.
The mixture freezes almost instantly
Delicious ice cream!