What is royal sauce bk?

Royal sauce is a signature sauce offered at Burger King restaurants. It is a tangy, creamy sauce that is often described as a mix between mayonnaise and ketchup with a touch of spiciness. The sauce is typically used as a topping for burgers, chicken sandwiches, and other menu items. It has a distinct flavor that adds a unique and savory taste to the food it is paired with. Royal sauce is a popular condiment choice for many Burger King customers and is often requested by name.