680 calories for the whole cookie (probably yield around 7 servings)

INGREDIENTS
3 mashed bananas
90g chocolate chunks
150g rolled oats

METHOD

1) Preheat the oven to 180•c. Place some baking parchment on a large rectangular tray.

2) Grind the oats down to make an oat powder.

3) Mix everything until fully combined.

4) Spoon the mixture onto the tray and spread out to make a giant cookie shape.

5) Bake for 15-20 minutes until golden (as you can see I put mine in for a little longer than it should be, but still tasted good).