Thoroughly mash bananas in a large bowl. Add the rest of the ingredients and mix together until just combined.
Preheat oven to 350 degrees. Add cookie dough to your freezer while the oven is preheating (for about 10 minutes).
Form ~12 evenly sized cookies on a sheet pan lined with parchment paper. I used a cookie scoop to spoon mine out. Flatten the cookies slightly as they will not spread much. Bake for 11-14 minutes, let cool for 10 minutes and enjoy.
Notes
This recipe makes about 12 cookies and nutritional information is for 1/12 of the recipe.