Even those who don't like chickpeas, never say no to such a meatball.
Soak the chickpeas for 24 hours in lukewarm water with the baking soda.
The next day, wash and drain them.
Grind the chickpeas and the onion in a food processor.
Add the garlic, parsley, tahini and spices to them and knead. If the mixture is quite wet and you cannot shape it, then add the breadcrumbs little by little.
Shape them into meatballs.
Flour them and fry them in hot oil.