In a food processer, blitz the onion, garlic, chilli and spices to a paste with a small spoon of olive oil and add to the mince with the chopped coriander. Shape meat into balls, approximately golf ball side . Fry gently in olive oil, browning the meat gently for 5 mins or so. Finish them in a moderately hot oven with a few spoons of your tomato sauce or harissa…about 10 minutes or until cooked. 
Serve with a punchy tomato sauce, a spoon of greek yoghurt, cous cous and Lots of chopped coriander and mint.