Preheat oven to 350
Line a bread pan with parchment paper
Mix together the bananas, sugar, egg, butter and vanilla
Add in baking soda, salt, flour and stir until mixed. Don’t over mix
Stir together the cinnamon sugar in a small bowl
Pour half the batter into the pan and then sprinkle half of the sugar mixture over it. Then pour the rest of the batter in and sprinkle with remaining sugar mixture
Bake for 45-60 minutes or until done, just continue to check it!