Seolleongtang is a hot, invigorating South Korean bone soup prepared by boiling cow's bones, feet, head, organs, brisket, and shank for a long time until the broth develops a creamy white color. The soup is a staple in numerous Korean households, especially during the cold winter months.

It is believed that the soup was invented because King Seonjong of the Joseon Dynasty needed to feed a large number of people at a worship ritual for the god of farming, during which a cow would be sacrificed. The name of the dish is derived from the word Seonnongtang, meaning soup boiled at Seonnongdan, and later on, the word evolved into Seolleongtang. 

Although it originated from the Chaozhou province in China, pig’s organ soup is nowadays most popular in Singapore. The dish consists of pig offal, sliced pork, vegetable strips, onion leaves, and pepper. It is often served accompanied by eggs, rice, vegetables, braised tofu, or a special sauce prepared with a combination of soy sauce and chopped chili peppers.

It is believed that the secret to a good broth is the combination of saltiness and sweetness coming from hours of boiling together pickled vegetables and pork bones.

Duck blood and vermicelli soup is a traditional delicacy made by cooking vermicelli, duck liver, blood, and intestines with dried tofu, dried shrimp, ginger, sesame oil, and caraway seeds. Although the dish is consumed in many Chinese regions, it is a specialty of Nanjing, famous throughout the world for its duck dishes, which is why it is sometimes referred to as the capital of duck.

According to a popular story, a poor man in Nanjing had killed a duck and used a bowl to hold its blood. While cleaning the duck, he accidentally dropped some vermicelli into the bowl and cooked the stew afterwards. When he tasted the stew, he found it quite flavorful, and a wealthy man heard about the newly created dish, thus employing the poor man as a cook for his family.