I've posted this before, but its so easy and so good I thought I'd make a quick post about it again.
All you need is bananas and a food processor. For one serving, it's two bananas. Slice your bananas and put them on wax paper and then in the freezer for about an hour.
After they're frozen, take them out and put then in the food processor. Whir them until smooth.
There will be three stages the bananas go through. First, they'll look like crumbs, then dough then smooth. There's your ice cream!
I make this quite a bit because my daughter is lactose intolerant. You can add some vanilla and cocoa powder for chocolate ice cream. You can add chocolate chips or sprinkles on top. Play around with it!