This vibrant recipe features tender boneless, skinless chicken thighs marinated in a flavorful mixture of sumac, Aleppo pepper, coriander, and allspice. Grilled alongside charred lemons and pita bread, the chicken is served with tangy pickled red onions and refreshing tzatziki, offering a perfect balance of smoky, tangy, and creamy flavors that make for an outstanding Mediterranean-inspired meal.