This ancient dish, popular throughout the Arab world, is also one of our most loved. The fried onion, with its sweet oiliness and slight crunch, is the secret. When Sami’s family went out on a day trip to Jericho, it was a large pot of mejadra they used to take with them for the picnic. It was divided into small bowls and topped with a spoonful of fresh yoghurt sauce. Dessert was a huge watermelon that Sami’s da