Buon Tan

Buon Tan refers to a type of Vietnamese rice noodle soup. The name translates roughly to "crab noodle soup." It is characterized by its rich, savory broth, often made with a base of tomatoes, pork bones, and fermented shrimp paste (mam tom). A key ingredient is freshwater crab, which is either ground into a paste to thicken the broth or served in chunks.

The soup typically includes ingredients such as:

• Rice vermicelli noodles (bún)
• Fried tofu
• Blood cubes (tiết canh)
• Pork (often pork belly or ribs)
• Various vegetables and herbs like scallions, perilla leaves, and bean sprouts
• Optional toppings like chili paste or lime wedges

Buon Tan is considered a popular and flavorful dish in Vietnamese cuisine, with regional variations in ingredients and preparation methods.