Preheat oven to 350 degrees. Spray two loaf pans with the baking non-stick cooking spray and set aside.
Put 1 Tbsp lemon juice in your half cup measure and fill the rest of the way with half and half. Set aside for 5 minutes.
In your mixer, cream butter and sugar for 3-4 minutes
Beat in your eggs one at a time.
In a separate bowl, whisk together the flour, baking soda, baking powder and salt.
Add the flour mixture to the butter mixture and mix on low until just combined.
Add in the mashed bananas, milk mixture and vanilla and mix well.
At this point stir in your mix-ins. (You can do mini chocolate chips, chopped nuts, a combination of both or nothing at all.)
Pour batter evenly into the two prepared loaf pans and bake for 50 minutes or until toothpick inserted in center comes out clean.
Let cool for at least 15 minutes then run a knife around the edge and remove from pans.
Let cool completely then slice and enjoy!