Preheat the oven to 180°C (fan forced).
Grease a loaf pan with butter or oil spray and then line with baking paper.
In a large glass bowl, add the bananas and mash well with a fork. Then add the melted butter, sugar, milk, vegemite and eggs. Use a whisk or hand held beater to mix all the ingredients.
In another bowl, sift the flour along with baking powder. Add a pinch of salt to this and mix.
Add the flour to the banana mixture and fold in gently till all the whole batter gets combined well.
Pour into the loaf pan and line the top with almond flakes.
Bake for 35-40 minutes or till done (insert a skewer through the centre of the loaf; the skewer will come out clean if done).
Cool before removing from the loaf pan.
Slice and serve with butter.