The main ingredient in a traditional chicken tikka masala is marinated chicken, usually boneless and skinless, which is often grilled or baked before being simmered in a rich, creamy tomato-based sauce. The marinade typically contains yogurt and spices such as cumin, coriander, and garam masala, which tenderize the chicken and infuse it with flavor. The sauce is made from tomatoes, cream, and a blend of spices that create a balance of flavors, including spiciness and sweetness. Chicken tikka masala has roots in Indian cuisine but has gained immense popularity worldwide, particularly in the UK.