Chocolate Chip Banana Bread

In one bowl mash 2 cups of ripe bananas (3-4 bananas), saving 1/2 a banana for later. In another bowl, combine 1 cup brown sugar, 1/4 cup of room temperature butter, and 1 cup of sour cream. Whisk in 2 eggs into the sugar mixture until it froths up like a mousse. Using a fine mesh strainer, add 1 1/2 cups of all-purpose flour, 1 1/4 teaspoons of baking powder, and 1 teaspoon of cinnamon to the bowl of the sugar mixture. Mix in the mashed bananas and then fold in the chocolate chips. Line a loaf pan with parchment paper and add the banana bread batter. Place some sliced bananas on top of the batter and bake at 350 degrees F for 1 hour and 5 minutes. Let cool for another hour.