We make ice cream almost every camping trip. Our rule is, if you want some...ya gotta make it yourself. It is actually really easy and only takes a few minutes. All you need is:
1 gallon freezer bag
1 pint zip lock bag
half & half
towel or hand towel
whatever flavorings you want in it (crushed up candy bars, fruit, ???)
Put some ice and generous amount of rock salt in the freezer bag.
Put 1/4 cup - 1/2 cup half & half in pint zip lock bag.
Add a bit of sugar and dash of vanilla (you may think that I know how to cook by my use of this terminology...but don't be fooled...I cooked one of my bachelor specials for my wife just after we got married and she hasn't let me cook since...almost 10 years and counting...at least I did something right).
Add your other flavors and seal the little baggy.
Massage the little baggy for a few seconds to get the sugar to dissolve.
Put the little baggy in the big baggy and seal the big bag.
Wrap it all up in the hand towel and shake it for about 2 minutes.
You want to be sure to wrap it in the towel while shaking it 'cause it gets darn cold.
Anyway, shake until you get it as thick as you desire and then enjoy some awesome home made ice cream.
The kids love it and a couple of one gallon bags will serve quite a few people as they (and the ice) can be reused a lot.
I don't remember the exact amount of the ingredients, but the recipe is in the trailer (along with the bags and rock salt).
Just a suggestion if people want to make this real simple.