Bashed Banana Whoopies

I was so excited to make a dessert that I didn't have to go and buy extra ingredients for. Everything was already in my pantry or fridge, and I was glad to put the last 2 very ripe bananas to use. These moist whoopies were big in size, and I could have made them a little thinner, yielding more than the allotted 10 sandwiches. Either way, it was big enough to share, that is, if you wanted to.