Preheat the oven to 350 degrees F. Coat a large glass loaf pan with cooking spray, or line it with parchment.
Whisk together the flour, cocoa powder, baking powder, baking soda, and salt in a medium sized bowl.
Whisk the banana, eggs, oil, maple syrup, and vanilla together in a large bowl.
Stir the flour mixture into the wet mixture with a silicone spatula. Stir for 50 strokes.
Add in the chocolate chips and stir them to combine.
Note: Reserve some of the chips to add on top if desired.
Scrape the banana bread batter into the prepared pan and top with the reserved chips, if desired.
Bake until the loaf is domed, set up when lightly touched, and a toothpick inserted into the center of the loaf comes out with moist crumbs attached. This should take 55 to 60 minutes.
Allow the banana bread to cool in the pan for 10 to 20 minutes. Turn it out to cool on a wire rack.
