This is my all-time favorite ice cream.
frozen banana pieces (to freeze, peel ripe bananas, break into small pieces, seal in a plastic bag in freezer).
handful of walnuts
Blend in a high-powered blender. Now, with no liquid, it's hard to blend at first. Sometimes it catches and makes a real creamy thick ice cream, like here:
Other times, especially if you make a small portion, it doesn't blend so well and then it's chunky, which is good too! I like it both ways, creamy and chunky. I've tried many ice cream recipes with added nut milks, sweeteners (e.g., dates) and berries, and this is my favorite. But of course, for variety, I like the others too.