Then mix the yoghurt, vinegar, oil and all the spices in a bowl and season with pepper, salt and sugar to taste. Then fold in the drained cucumber, onion, garlic, chili peppers and mint and let everything steep a little. The reduced-fat yogurt used here is not mandatory. Of course, you can also use a higher fat one, but the lower-calorie version also tasted good. Actually, fresh coriander belongs in it, but it's too soapy for me ...... but as everyone likes.