I saw this idea on the web somewhere, sorry I will get better at citing my sources of inspiration. If you have bananas that have seen better days stick them in the freezer. Then when you fancy a banana smoothie take them out,
don’t worry they looked like that when they went in but perfect on the inside.
I roughly chopped them (not sure that this necessary) and put in blender with 1/2 pint of semi-skim milk. Gave it a good blend and that’s it.
It was a very thick icy smoothie but really nice. My 5yo came back for more so I think that’s a good test!