Line a baking sheet with parchment paper or oil baking sheet to prevent sticking.
In a medium bowl, add the peanut butter and bananas. Blend with a hand-held electric mixer or a wire whisk until the mixture is creamy and smooth.
Add the oat flour and fold it into the peanut butter mixture until the dough comes together in a ball.
Place dough on a floured surface. Using a rolling pin, roll the dough until about ¼ inch thick. Use a cookie cutter to cut out fun shapes such as these cute dog bone shapes.
Place treats on the prepared baking sheet and place in preheated oven.
Bake for 10-15 minutes or until cookies are slightly brown on the bottom.
Transfer to a cooling rack. Allow cookies to cool completely before giving them to your dog.
Notes
StorageStore these tasty treats in an airtight container at room temperature for up to 3 days (for high humid areas - store in the refrigerator). For longer storage, store in the refrigerator for up to 7 days and the freezer for up to 3 months.