You need salt to make ice cream. it makes the ice freeze colder. The trick is to put it on the ice, and not the cream. The ice goes around the bucket you put the cream in.

And now you know how to use a homemade ice cream maker. They make delicious stuff.

1 cup of sweetened evaporated milk
some actual milk
sugar

mix together in a bowl, put the bowl in a bucket of ice. this is where the ice cream maching will work for you.

wait like an hour. You now have ice cream. Congratulations.

(there are probably more steps. My mom always does it xD)

EVEN EASIER:

Get snow;
Get sweetened evaporated milk;

mix.

Eat.

(make sure you get clean snow that hasn't been peed or had smoke settle on. Hickory flavored snowcream is DISGUSTING)