352g pureed bananas (if frozen, defrost and drain off any liquid). Sprinkle over 0.5tbsp baking powder and mix in thoroughly. Stir in 135g porridge oats and level tsp cinnamon.
Pour into a lined 7inch tin. Bake at 180C for about 30 minutes, until the top looks dry and is firm to touch.
When cooled, cut into 8 slices.
