Zwiebelrostbraten is a traditional German dish that features a juicy beef roast, typically prepared from cuts like the ribeye or sirloin. The meat is seasoned and seared, then slow-cooked to enhance its tenderness. It is often served with a rich gravy made from the pan drippings, which adds depth to the flavor. The dish is topped with crispy, caramelized onions, which provide a sweet contrast to the savory beef. Zwiebelrostbraten is commonly accompanied by side dishes such as potatoes or spätzle, making it a hearty and satisfying meal enjoyed in many German households and restaurants.