Mash the bananas with a fork or blend them in a blender.
Add enough oats and the other ingredients to create a malleable dough. Let it rest until the oven warms up.
Turn the oven on to 180°C. Line a baking tray with parchment paper.
Make equal sized balls (8-10) from the mixture and flatten these slightly between your palms. Put these on the baking tray and bake for about 15-20 minutes until the edge turns golden brown.
Meanwhile, mix the cordial with the lemon juice in a pan and heat it up. Let it bubble until it gets syrupy.
When the cookies are done, transfer them to a wire rack and brush with the glaze.
Let them cool before serving.