For the shawarma: • boneless chicken breast (about 1 kilogram) • vinegar, juice of 1 lemon, 3 tablespoons plain yogurt, 2 tablespoons mustard, oil • shawarma spice blend, 1 tablespoon garlic powder, 1/2 tablespoon paprika, salt • For the other layers: • potatoes (about 1 kilogram) • Pita bread for frying • For the tarator sauce: tahini, lemon juice, plain yogurt, salt, 2 garlic cloves • For topping: cashews or any kind of nuts