Preheat oven to 325 degrees F and spray a 9" loaf pan generously with cooking spray or line with parchment paper.

Cream together the butter and sugar until light and fluffy. Stir in eggs one at a time until well combined.

In a separate bowl, mash the bananas with a fork. Stir in milk. Add the banana mixture to the butter mixture and stir until combined.

In another bowl, sift together the flour, baking soda, baking powder and salt. Pour chocolate chips into a bowl and sprinkle with about 1 tablespoon of the flour mixture. Stir to coat and set aside.

Add the remaining dry mixture to the wet mixture and stir just until combined - do not overmix. As soon as the dry ingredients are blended in you're done mixing.

Gently fold in chocolate chips.

Pour batter into the prepared loaf pan. Bake for 1 hour or until golden brown and a toothpick inserted into the center comes out clean.

Cool in the pan on a wire rack, then gently lift out using the parchment paper as handles. Slice and serve.