Mash bananas into a puree with a food processor or hand stick blender.
Pour puree into a bowl if using a food processor, then add all remaining ingredients, mixing to incorporate.
If you have a mixing bowl with a pour spout they easily pour into molds.
Freeze for around 1 hour, insert the sticks, freeze until solid.
I have made them without freezing the bananas first but if you don't freeze the bananas first they will not be as creamy and will be more icy -- This way they are more like store bought.
I got my sticks and molds from the Dollar Tree. I don't recommend the plastic reusable sticks that come with the molds and use wooden sticks.