After you gather all of your ingredients, combine the first 3 ingredients and mix well, then mash in the bananas.
Add in the peanut butter.
In a separate bowl, stir together the flower, soda, and salt.
Fold the dry ingredients into the banana mixture, and then add nuts.
The star of this dish...the peanut butter. Get ready to bake up!
Bake at 350 degrees for 24-27 minutes. Done!