In a bowl add butter, caster sugar, beat it well, add one egg at a time and 1 tbsp flour so it doesn't curdle, add vanilla extract and beat it slightly,
now add the other egg and 1 tbsp of flour beat it slightly.
In another bowl add baking powder, desiccated coconut to the remaining flour, Add this to batter.
Cut banana into slices and mash it, add mashed banana into the mixture and mix well, add a few chocolate chips.
Brush oil on all the side of the baking dish, as well as on the butter paper and pour the batter in it.
Soften peanut butter with little warm water and fill it in a piping bag and pour drops of peanut butter into the batter.
Take toothpick and swirl it well.
Add Choco chips on the top.
Bake in a preheated oven at 160 C for 25 30 minutes and after that insert the toothpick in centre to check.
If it comes out clean your peanut butter banana bread is ready to eat.