Preheat your oven to 180°C/350°F
Mash bananas and add to a large mixing bowl
Add all wet ingredients to the bowl and stir together
Blend oats in a blender to create oat flour consistency and add to the bowl
Add all remaining dry ingredients and mix well
Pour into a lined loaf pan and for garnish slice a banana in half lengthways and slightly press into the batter before placing in the oven for 45 minutes to 1 hour (depending on oven strength)
Check that it's cooked by sticking a toothpick inside and see if it comes out clean
Let it rest in the tin for 10 minutes before removing, then place on a cooling rack for a further 10 minutes before slicing
