Soak the chickpeas and fava beans in water overnight.
Drain and rinse the soaked beans.
In a food processor, combine the beans, onion, garlic, cumin powder, coriander powder, salt, black pepper, parsley, cilantro, mint, and flour.
Pulse until the mixture becomes a thick paste.
Shape the mixture into small balls.
Heat the oil in a deep fryer or saucepan.
Fry the falafel balls until golden brown.
Serve with hummus, tahini sauce, and pickles.