Sauerbraten, a German specialty, is made by soaking beef roast in a sweet-and-sour marinade for two to three days. The roast is browned, then simmered in the marinade, which often contains gingersnaps. The beef-simmered marinade makes a delicious sauce for the roast. Traditionally, sauerbraten is served with dumplings, noodles or boiled potatoes.
There are several brands of beef gravy available, including some that are very low in fat.