What is "rinderbraten"

Rinderbraten, also known as Marinierter Rinderbraten, is a dish of German origin whose name means "beef roast". It is made from a large round of beef, stuffed with pork fat that has been rolled in a combination of saltpeter, salt, red pepper, brown sugar, allspice, and cloves. The round is then submerged in brine for up to six weeks, then boiled, and then simmered, with the blackened outer layer of beef and fat removed and cinnamon sprinkled over it before serving.