Chicken tikka masala is composed of chicken tikka, boneless chunks of chicken marinated in spices and yogurt that are roasted in an oven, served in a creamy curry sauce. A tomato and coriander sauce is common, but no recipe for chicken tikka masala is standard; a survey found that of 48 different recipes, the only common ingredient was chicken. The sauce usually includes tomatoes (frequently as purée), cream, coconut cream and spices. The sauce and chicken pieces may be coloured orange using foodstuffs such as turmeric, paprika, tomato purée or with food dye. The dish shares some similarity with butter chicken, both in the method of creation and appearance.