In a large bowl, use an electric mixer to cream together the butter and brown sugar. Add peanut butter, eggs, bananas, salt, vanilla, baking soda, and cinnamon. Blend well.
Gently stir in flour, then peanut butter chips.
Pour into a well greased loaf pan and bake at 350° F on the center rack for about 60 minutes. Check center with a toothpick for doneness.
Notes
Calories are automatically generated. For best results calculate based on your exact ingredients.