Mash the bananas with a fork or blend them in a blender.
Add the oats, grated apple and spices. Mix well. Add more oats if needed. You’ll need to have a thick but malleable dough. Let it rest until the oven warms up.
Turn the oven temperature to 180°C.Line a baking tray with parchment paper.
Make equal sized balls from the mixture and flatten these slightly between your palms.
Put them on a baking tray, then bake in the oven for about 15- 20 minutes until golden.
Let them cool in the tray for 5 minutes, them move them to a wire rack.