Mambo sauce, also known as Mumbo sauce, is a condiment developed and popularized at take-out restaurants in Washington, D.C. . It is a red-orange sauce that is similar to barbecue sauce, but somewhat sweeter, and also somewhat spicier or more sour. McDonalds recently released their own version of the sauce as a limited time offering in their US locations. The sauce has a complicated history, with some claiming it was born in Chicago and others claiming it was born in D.C. . The DC go-go group Mambo Sauce derived their name from the condiment, and there are cultural references to it in music, literature, and even beer. The recipe for Mambo sauce typically includes ketchup, vinegar, hot sauce, and spices, and it can be used as a dipping sauce or a glaze for meats and other foods. Capital City is a popular brand of Mambo sauce that is available for purchase online.