Summarize the following:
Once that's well mixed, add in the other half of the flour and combine. Bake for 40 to 45 minutes. Check to see if it's done. Keep doing this until cooked. If it is done cooking, bring bread out of the oven and take it out of the baking tin and put on a plate/cooking rack/tray.
Preheat the oven to 170C/325F. Peel the bananas and mash them up into a pulp. Add the melted butter and combine. Add the vanilla essence/extract and combine. Add the baking powder and combine. Add the sugar and combine. Add half of the flour and combine. Take a square baking tin/pan and line it with the left-over melted butter (there will be some left over in the bowl), then put the mixture in, spreading evenly. Put the batter into the oven. If it's not done cooking, put in back in the oven for another 5 minutes. Wait 5 to 7 minutes for bread to cool down, then serve.