When‑Dong Duck Vermicelli, braised dishes, and 40‑year‑old rice blood from the renowned duck meat shop, all use the ancient method of simmering the broth. The braising sauce is steeped with more than a decade’s worth of premium Chinese medicinal herbs, including Angelica sinensis, red dates, cooked earthworm, goji berries, astragalus, and others. Though the soup is dark, it is far from bitter. Angelica duck vermicelli, duck meat noodles, and rice blood are signature dishes that customers must order.