Preheat oven to 350 degrees.
Melt the butter over low heat in a small sauce pan and allow to cool.
In a medium bowl, whisk together the flour, baking soda, baking powder, and salt. Set aside.
In a large bowl, mash bananas with a fork, then add the eggs, melted butter, and sugar.
Add the flour mixture to the banana mixture. Mix with a spoon until just combined. Don't over mix.
Fold in the chocolate chips
Place muffin liners in the muffin tin (12 count) and spray them with cooking spray... otherwise they will stick.
Scoop batter into each one 3/4 of the way full. A large cookie scoop works good for this.
Bake at 350 degrees for 20-25 minutes.
Let cool before removing paper liner off muffin. Enjoy!
