I notice from this article that two of these places have "Gingersnap Gravy" - is this a Baltimore "thing?" If so, what is it? For so long, Washington, DC has tried to come up with a city specialty - why don't they go to some of their old-time, family-owned restaurants (what few there are left), and see what they served fifty years ago? They've come up with "Mumbo Sauce," and Gingersnap Gravy has proven that it doesn't need to be anything fancy.