Preheat the oven

• Preheat the oven to 180°C (350°F).
• Line a baking tray with parchment paper.

Make the oat flour

• Blend the rolled oats until they turn into a fine flour.

Mix the wet ingredients

• Mash the ripe bananas in a bowl until smooth.
• Add the egg, greek yogurt, honey and vanilla extract.
• Whisk everything together until well combined.

Add the dry ingredients

• Add the oat flour, baking powder, cinnamon and a pinch of salt.
• Stir until you get a thick, even dough.
• Fold in the dark chocolate chips.

Shape the cookies

• Spoon small mounds of dough onto the baking tray.
• Flatten them slightly with the back of a spoon to make 29 small cookies.

Bake

• Bake for 12 to 15 minutes, until the edges are golden.
• Let the cookies cool completely on the tray before removing.