Mash the overripe bananas in a bowl.
Add in your wet ingredients and mix to combine.
Add in your dry ingredients and mix until fully incorporated.
Fold in your chocolate chips and pour your mixture into a lined baking pan.
Bake at 350°F for 55 minutes or until the toothpick comes out clean.
Once out of the oven, cool in the pan for up to 15 minutes before taking it out.
Transfer it to a cooling rack and cool completely before cutting to allow it to firm up.