Wikipedia
Gamjatang
Gamjatang or pork spine soup is a spicy Korean soup made from the spine of a pig. It often contains potatoes, cellophane noodles, dried daikon radish greens, perilla leaves, green onions, hot peppers and ground sesame seeds.
The vertebrae are usually separated with bits of meat clinging to them. The vertebrae is boiled in high temperatures to soften the meat. To remove the meat, one must use an instrument such as a chopstick. The meal is usually served with kimchi and a bowl of rice. This food is served as a lunch or dinner and often as a late night snack as well.
The soup base is a deep red colour from the red hot peppers.
The soup is now common in Korean restaurants outside of Korea, including the United States and Canada.