Preheat your oven to 180c and grease a loaf tin with a little coconut oil. 

In a food processor, combine the bananas, coconut oil and coconut sugar and blend until well combined. 

Add in the rest of the ingredients (apart from the chocolate) and blend again, so that you're left with a smooth cake batter. 

Stir through the dark chocolate and pour the mixture into your loaf tin. Sprinkle some extra chocolate on the top and pop this into the oven to bake for 30 minutes.

Once cooked, allow to cool completely on a wire rack. 

I've melted a little bit of vegan white chocolate to decorate the loaf, but this is of course optional.