Preheat your oven to 400°F (or air fryer to 375°F).
In a food processor, combine the chickpeas, onion, garlic, parsley, cilantro, cumin, coriander, black pepper, olive oil, and lemon juice. Pulse until well mixed but still a bit chunky.
15 oz chickpeas, ½ cup onion, 2 cloves garlic, ¼ cup parsley, ¼ cup cilantro, 1 tsp cumin, 1 tsp coriander, ¼ tsp pepper, 1 tbsp olive oil, 1 tbsp lemon juice
Add the baking powder, ground flaxseed, and breadcrumbs. Pulse again until just combined. Let the mixture rest for 10 minutes so the flax can absorb moisture and help bind everything together.
½ tsp baking powder, 1 tbsp flaxseed, 2 tbsp breadcrumbs
While the falafel mixture rests, whisk together the tahini, water, lemon juice, garlic, and a pinch of salt in a small bowl. Add more water a little at a time until the sauce reaches your desired consistency—smooth and pourable.
½ cup tahini, ¼ cup water, 2 tbsp lemon juice, 1 clove garlic, 1 pinch salt
Once the falafel mixture is ready, shape it into about 12 small balls or patties. Place them on a parchment-lined baking sheet or in an air fryer basket.
Bake for 25–30 minutes, flipping halfway through, or air-fry for 12–15 minutes, shaking halfway, until golden and crisp on the outside.
Serve warm with the tahini sauce drizzled on top or on the side for dipping.