For a tender and juicy chicken shawarma, try marinating the chicken in yogurt. The yogurt helps to tenderize the meat and infuse it with flavor. Mix together Greek yogurt, lemon juice, garlic, and a blend of spices like cumin, paprika, and turmeric. Marinate the chicken for at least 2 hours or overnight for maximum flavor. Grill or roast the chicken until it's cooked through and slightly charred. Serve it in a pita with a drizzle of tzatziki sauce, sliced cucumbers, and fresh herbs for a creamy and delicious meal.