300 g  Self Raising Flour

1 tsp  Bicarbonate of Soda

100 g  Light Muscovado Sugar

50 g  Porridge Oats , plus 1 tbsp for topping

2  Bananas , ripened

284 ml  Buttermilk

5 tbsp  Light Olive Oil

2  Egg Whites

150 g  Blueberries