n first inspection, this dish looks like herb-flecked meatballs in tomato sauce, but the sauce is spiced, tangy and aromatic, and the meatballs are, well, fish balls, made of a combination of mackerel and sardines. We use tinned sardines here, for ease, but you can obviously substitute with fresh sardines, scaled and boned. You’ll also want to pay attention to the total weight or volume of the mackerel: some types are larger than others.
