Preheat your oven to 350°F (175°C).

Grease a 9x5 inch loaf pan thoroughly with butter or oil.

In a large mixing bowl, mash very ripe bananas until smooth and creamy.

Melt the butter and let it cool slightly before mixing it with the mashed bananas, sugar, and beaten eggs until smooth.

In a separate bowl, whisk together flour, baking powder, baking soda, and salt, then gradually incorporate the dry ingredients into the wet mixture.

Gently fold in the semi-sweet chocolate chips until evenly distributed.

Pour the batter into the prepared loaf pan and smooth the top.

Bake in the preheated oven for 50-60 minutes, until the top is golden brown and a toothpick comes out clean.

Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.