Preheat the oven to 180°C (350°F) and grease or line a bread pan with parchment paper. Set aside.
In a medium sized bowl, add all of the dry ingredients and mix. Set aside.
In the bowl of a stand mixer, add the sugar and melted butter. Mix briefly.
Add in the eggs, sour cream, mashed bananas and vanilla extract. Mix until combined.
Add the dry ingredients to the wet and mix briefly until just combined.
Pour the batter into the prepared bread pan and bake for 55 minutes or until a toothpick comes out clean.
Let cool for 15 minutes, prior to removing from the bread pan. Transfer to a cooling rack and let cool completely.
