Take a bowl mash bananas make a paste add vanila essance.
In another bowl add butter, salt pinch ,sugar mix well, now add the banana mixture mix well again.
In another bowl add maida, baking soda, baking powder mix well
Now add maida mixture to Banana and butter mixture mix well to avoide lumps.
Take a cake mould grease the tray with butter and sprinkle maida pour the batter into it and preheat the oven 325 F cook for 45 mins.