What is royal sauce at burger king?

Royal sauce at Burger King is a creamy, tangy and slightly sweet condiment that is often used on their signature Whopper sandwich. It is made with a combination of mayonnaise, ketchup, mustard, vinegar, and spices to create a unique flavor that complements the flame-grilled beef patty and fresh toppings on the burger. The sauce is also available as a dipping sauce for chicken tenders and onion rings at Burger King restaurants. It has been a popular menu item for decades and is a favorite among many Burger King customers.