Preheat your oven to 350°F (175°C).
In a large bowl, mash the ripe bananas until smooth.
Add the peanut butter, maple syrup, and melted butter to the bananas. Mix until well combined.
Beat in the eggs one at a time, followed by the vanilla extract.
In a separate bowl, combine the flour, sugar, baking powder, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Pour the batter into a greased loaf pan.
Bake in the preheated oven for about an hour, or until a toothpick inserted into the center of the bread comes out clean.
Let your Peanut Butter Maple Banana Bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely.