Overripe bananas are so frustrating!! And I buy only organic ones so I simply refuse to throw them away. I learned a long time ago to peel the overripe ones and freeze them in a gallon ziplock bag. When I had bunch (no pun intended) I had to get creative! These muffins are one result of that frustration/creative process. There's also some pretty good ice cream to be made with these rascals ... but alas, that'll be another recipe and another post!! You can use bananas that aren't frozen as well. Or you can use a combination of fresh and frozen overripe. Regardless, purée them until they're super smooth and enjoy this one-bowl-wonder recipe! I often double it because they don't last long (and because I have a bunch of frozen bananas). I love the fact that all the sugar in this recipe is SO natural. Freeze any excess ones after a week.