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.