KFC Sauce, sometimes referred to as BBQ sauce or sauce, is a popular condiment in the United States. It usually consists of molasses and mayonnaise combined with spices and other ingredients such as vinegar, Worcestershire sauce or other citrus juice, soy sauce, brown sugar, onion powder, and garlic powder. There are many variations of this style of "sauce" on the market today. The most popular is Original Recipe which has a kick from cayenne pepper. The secret recipe is closely guarded by KFC and the ingredients vary from region to region. KFC has been undergoing a "rebirth" of sorts as of late with menu additions like the famous KFC Double Down Sandwich which is similar to a bacon double cheeseburger… meat with meat and cheese between.