Soak the chia seeds in water for 5 minutes or until they form a thick, gel-like mixture.
Meanwhile, blitz the zucchini in a food processor or shred them with a box grater.
Next, grind half of the oats into flour using a food processor.
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{{/ items}} {{^ items}} {{/ items}}Now, add all the ingredients into a bowl and work them into a moist and sticky dough.
For each cookie, roll a small handful of dough into a ball and then flatten it down onto a baking tray.
Finally, bake the cookies for 15 minutes at 200°C (390°F) and then leave them to cool and crisp up on a wire rack.