Pre heat the oven 350 degrees
Grease the loaf pan with nonsick baking spray then go over it with a kitchen brush make sure it's evenly spread.
With a paddle attachment on the standing mixer, combine butter, sugar and let it mix it.
Add in the eggs and mix well in the standing mixer.
Add in bananas and pure vanilla extract and mix well in the standing mixer.
In a medium size bowl, add flour cinamon powder, baking soda, baking powder and salt and mix well slightly with the spoon.
Now add in dry mixture into your wet mixture in thirds and between that add in the milk and mix well.
Add in ½ cup of chocolate chip into the mixture and mix it with a spatula.
Pour the mixture in the greased loaf pan and even it out with the spatula.
Top the mixture with the rest of chocolate chip and walnuts.
Bake for 50 minutes.