I found this on the website of Our Best Bites. It was called "One Ingredient Ice Cream." My wonderful, lawyer husband kindly informed me that it was illegal to call something ice cream that doesn't contain at least 10% milk fat, so we'll call it a "frozen treat"!
It is only one ingredient, which are bananas.
You start with aged bananas that look something like this.
Then you cut them up into slices, flatten them out in a bag like this, and freeze them.
Then you put it in a food processor and blend it up really good. Surprisingly, it does have the consistency of ice cream. It does, of course, have the flavor of what it's made out of, so you do have to like bananas.
It should look a little something like this.
It's great topped off with a little bit of chocolate syrup. The website even suggested blending it with a little bit of cinnamon, but we haven't tried that.