Preheat oven to 350 and spray a loaf pan with non-stick cooking spray. In the bowl of your mixer, combine the sugar and the eggs. Add the oil and bananas until the bananas are well mashed and combined. Add the vanilla, salt, baking soda, and cocoa powder. Add the flour and mix until just combined. Fold in the chocolate chips. Pour the batter into the prepared pan and bake for 1 hour.
Recipe by Five Wooden Spoons at https://www.fivewoodenspoons.com/2014/03/24/double-chocolate-banana-bread/