Pre-heat oven to 350 F / 180 C
Grease a 9 x 5 loaf pan with some butter and set aside
In a bowl, add the bananas and mash with a fork until fairly smooth
Add in the melted butter and stir until well combined
Next, add the sugar, egg, vanilla, baking soda, and salt and stir to combine
Add the flour next and fold it in until the batter is smooth
Add in the chocolate chips and fold well to distribute them well through the batter
Pour the batter into the greased loaf pan
Top with almond flakes or additional chocolate chips
Bake for 50-55 minutes or until a skewer inserted into the banana bread comes out clean
Leave in the pan for 10 minutes then invert onto a cooling rack
Cool completely before slicing and serving