Arrange the banana bread/cake and bananas in a deep baking dish. Heat milk in a pan with the sugar and bring to a boil. Allow to cool a bit. Beat eggs and vanilla essence in a bowl. Add to the milk and stir well to get slightly thickened, smooth custard. Pour over the bananas and cake thill they are submerged. Sprinkle with cinnamon powder and icing sugar. Stand for 20 minutes to let the cake soak the liquid.

Put it in a pre-heated oven [180 deg C] and bake it for 45 minutes till the top turns a rich golden colour.