Peel the bananas, place in a bowl and mash very well with a fork until you have a smooth runny mixture.

Add the peanut butter in (it's okay of its quite solid to start) and stir well until combined.

Sieve the flour in and mix in until you start to get a dough like mixture. Add the baking powder and the salt.

Tip your oats in and make sure everything is well combined.

If using, add your chocolate, mix in.

Drop spoonful's (you can shape using 2 spoons if you wish) onto a baking tray (they should hold their shape).

Bake at Gas Mark 5 (375f / 190c) for 20 minutes. Remove from the oven and allow to cool.

Enjoy!