Preheat oven to 350 degrees Fahrenheit.
Peel and mash the overripe bananas.
In the mixing bowl, cream/mix room temperature butter and brown sugar.
Add the eggs to the butter-brown sugar mixture and mix until well blended.
Add the mashed bananas to the mixture and mix again until well blended.
Add the baking soda to the mixture and mix/blend.
Add the salt to the mixture and mix/blend.
Add the flour 1/2 cup each time and blend until thoroughly mixed.
Fold the chocholate chips into the banana muffin mixture.
Scoop the mixture into cupcake pans or mini cupcake pans.
Place in the oven. For mini cupcakes: 10 minutes. For cupcakes: 18 minutes.
Serve and enjoy.