With an abundance if overripe bananas from work, I've been making this about once a week. I find it to be very "forgiving" and adaptable to ingredients on-hand or that I prefer. I usually use spread instead of shortening, but have also used 1/4 cup each butter and shortening. I've also used half brown sugar and half granulated. I end up with just over a cup of bananas when I use 3, so I add another quarter cup flour and a pinch more soda and also vanilla. Experiment with adding cocoa or even crushed pineapple in the place of some banana. Great simple recipe that I've passed on to others!