Peel the bananas and slice them into small chunks.

Add the banana slices, milk, and sweetener (if using) to a blender. Blend until smooth and creamy.

Taste the mixture and adjust sweetness if needed, then blend again.

Pour the mixture into popsicle molds, leaving a little space at the top.

Freeze for at least 4-6 hours, or overnight for firmer texture.

To unmold, run warm water over the outside of the molds for a few seconds, then gently remove and serve.