Special Mongolian Sauce

The sauce you are referring to is likely "Mongolian" or "Mongolian BBQ" sauce, which is a popular condiment served in Mongolian barbecue restaurants in the United States. The sauce varies in ingredients depending on the restaurant, but it typically includes soy sauce, hoisin sauce, garlic, ginger, and a sweetener such as honey or brown sugar. Some variations may also include oyster sauce, sesame oil, rice vinegar, or chili garlic paste for added depth of flavor. Mongolian sauce is used as a marinade for meats and vegetables, or as a dipping sauce for dishes served at Mongolian barbecue restaurants, where customers can select and cook their own ingredients on a large, round grill.