Preheat your oven to 350° and a line a baking sheet with parchment paper
In a large mixing bowl, mash your banana
Now add peanut butter, beef broth, and a 1/3 cup of flour at a time until well mixed
Use a spatula to take all your dough out of your bowl and form into a large dough ball with your hands
Roll your dough out with a rolling pin and use a bone cookie cutter to cut out your bone shaped dough, press your fork in the middle of the bones
Bake your bone dog biscuits on your parchment paper lined baking sheet for about 16-18 minutes, depending on how thick your dough is
Let cool and give one to your happy pup!