Once you've peeled and mashed the banana, store for no more than 1 day in the fridge. To freeze for later: fill an ice cube tray with the banana puree. Freeze for at least 2 hours, till solid. Remove cubes from tray and place in a freezer bag. To defrost, place in microwave for 30 seconds, or as needed.
Ripe bananas are more easily digestible and are also higher in antioxidants.
I made this for my son's second solid "meal" and he loved it! I did puree the banana with some breast milk to thin the consistency. I used half a large banana, and he ate about half of what I prepared. If you're just starting out with solids, you may want to make less, using 1/3 a banana, or be sure to only serve a bit of what you make and leave the rest in the fridge for the next day. - 08 Jun 2016