Mambo Sauce is Coming to McDonald’s

Beginning October 9, McDonald’s is a adding Mambo Sauce to its menu for a limited time. Mambo sauce, also know as Mumbo sauce, is a sweet, sour, and spicy condiment that originated in Washington, DC carry-out restaurants and can be found across Montgomery County in restaurants like Kenny’s Sub Shop (Gaithersburg, Rockville, and Wheaton).

McDonald’s describes its Mambo sauce as a “tomato-based, sweet, spicy and vinegary sauce; inspired by the regional Washington, D.C. area sauce staple.” McDonald’s will also be adding a Sweet & Spicy Jam Sauce, a “jammy red pepper sauce with a tongue- numbing Szechuan peppercorn kick and extra heat from cayenne pepper; finished with apple cider vinegar,” that the company claims is the first-ever breakfast-inspired dipping sauce to hit US restaurants.

Last year, Starvin Marvin began selling its Mambo sauce in Giant locations across the DMV. Starvin Marvin opened in Gaithersburg in 1982 and was bought by the Foundas family in 1987. In 1990 the family opened a location in Wheaton that only lasted a few years. In 2009, a Frederick location opened and the Gaithersburg store was sold to two brothers who were longtime employees and wanted something of their own. Those early days at the Gaithersburg store in the 90s, however, were the inspiration for Starvin Marvin Mambo Sauce.

“Mambo was something we experimented with from time time in the 90’s because our Gaithersburg customers would ask for it, but it was actually in Frederick where our Mambo Sauce (found in the grocery stores today) began to come together.” Dino Foundas told us. “We worked with some of our dear employees to perfect the recipe that we’ve started to include in a lot of our dishes”

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