Preheat your oven to 350°F (175°C).
In a large bowl, take your ripe bananas and mash them until smooth. The riper the bananas, the sweeter and more flavourful your bread will be.
Add the maple syrup, egg, and canola oil to the mashed bananas. Mix well until all the wet ingredients are thoroughly combined.
Add in the protein powder, black cocoa powder, all-purpose flour, baking soda, baking powder, and salt into the bowl. Gently fold the ingredients together until just combined. Be careful not to over-mix, as this can result in a dense bread.
Mix in the chocolate chips. Pro tip: use chopped chocolate instead of chocolate chips - these will melt better and create delicious pockets of chocolaty goodness throughout the bread.
Pour the batter into a lined and greased loaf pan.
Place the loaf pan in the preheated oven and bake for 45-55 minutes. To check for doneness, insert a toothpick into the centre of the bread. If it comes out clean or with a few crumbs clinging to it, your banana bread is ready.
Once baked, remove the banana bread from the oven and allow it to cool in the pan for 10-15 minutes. This helps it set and become easier to slice.
After cooling slightly, transfer the banana bread to a wire rack to cool completely.