McDonald’s secret sauce is a blend of several ingredients, including tomato sauce, yellow mustard, ketchup, and Worcestershire sauce. The sauce is largely a mystery, with many people speculating about its ingredients.
Some claims say that the sauce contains MSG, while others say that it is made of dijon mustard and barbecue sauce. Whatever the case may be, McDonald’s sauce is a integral part of the fast food chain’s flavor profile and is a popular choice among consumers.