chicken breast, cut into thin strips (500 grams) • Juice of 1 lemon • drizzle of olive oil • garlic, minced • Salt, black pepper, ground cumin, ground coriander, allspice, 1 teaspoon sumac • Tahini Sauce: • tahini (liquid) • plain yogurt (300 grams) • Salt • garlic, minced • Juice of 1 lemon • Shraak bread or flour tortillas, as available •