McDonald’s is taking a local D.C. sauce, national. The fast food franchise is adding Mambo Sauce (yes, that is how they’re spelling it) to their menus nationwide for a limited time. In addition to the popular D.C. sauce, they’re also adding a Sweet & Spicy Jam to pair with your morning Sausage Egg McMuffin. Click the link below to learn why McDonald's Mambo sauce is spelled different on the packet. https://www.wusa9.com/amp/article/life/food/mcdonalds-mambo-sauce-october-9/65-6d87e30f-8302-4fd0-b4a9-6fde44b9b75c
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