Preheat oven to 175°C (350°F)
Grease loaf pan with cooking spray or butter
In a bowl mash your bananas until smooth
In a medium sized mixing bowl cream together the butter and sugar
Add the eggs to the butter and sugar mixture, stir until well combined
Add mashed bananas and water to the mixture and beat for 30 seconds
Add in dry ingredients (expect chocolate chips) and stir until just combined, don't over-mix
Add in chocolate chips and pour into greased pan
Bake for 55-60 minutes or until wooden pick inserted into centre comes out clean
Let cool for 5 minutes, then loosen sides from pan and remove from loaf from the pan
Let cool completely before slicing