Simmmer.

Step 1 of 4

Banana smoothie

Step 1 of 4

Freeze the bananas the night before

Peel the bananas, slice them into coins and freeze them in a bag or a tub for at least four hours, or overnight.

Very ripe bananas, the ones with brown freckles, are far sweeter. Freezing them is also the standard way to stop throwing them away.