Soak the Chickpeas: Place the dried chickpeas in a large bowl and cover them with plenty of cold water. Let them soak for 18–24 hours until they have expanded and softened slightly. Drain and rinse thoroughly. Do not use cooked or canned chickpeas, as they contain too much moisture for traditional falafel texture.
Prepare the Ingredients: Add the drained chickpeas, chopped onion, garlic, parsley, and cilantro to a food processor. Pulse several times until the mixture becomes finely chopped and crumbly. Avoid blending it into a smooth paste.
Season the Mixture: Add the cumin, coriander, salt, black pepper, baking soda, lemon juice, and flour. Pulse briefly until everything is evenly combined. The mixture should hold together when pressed between your fingers.
Chill the Falafel Mixture: Transfer the mixture to a bowl, cover, and refrigerate for 30 minutes. Chilling helps the mixture firm up and makes shaping easier.
Shape the Falafel: Scoop about 2 tablespoons of the mixture at a time and shape into small round patties or balls. Keep them similar in size so they cook evenly. If the mixture feels too loose, mix in another tablespoon of flour.
Preheat the Air Fryer: Preheat the air fryer to 375°F for about 3 minutes, if your model requires it. Lightly spray the air fryer basket with olive oil to prevent sticking.
Air Fry Until Golden: Arrange the falafel in a single layer with a little space between each piece. Lightly spray the tops with olive oil. Air fry at 375°F for 12–15 minutes, flipping halfway through, until golden brown and crisp on the outside.
Serve Warm: Carefully remove the falafel from the basket and let them rest for a minute. Serve warm with tahini sauce, hummus, pita bread, or a fresh salad.