For the dressing, whisk all the ingredients together and taste for seasoning.
Chop the tomatoes, cucumber, onion and red and green peppers very finely and place in a bowl.
Add the herbs and dressing. Toss well and check for seasoning.
Spread the chopped salad out on a large plate. Spoon the yoghurt over the centre of the salad,
Then drizzle the warm caramelised butter all over. Sprinkle with the chilli flakes and sumac. Eat with bread.
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