Banh canh cua is a traditional noodle soup. The noodles contain both rice and tapioca flour and they're characterized by their thickness, similar to the famous Japanese udon. These thick and slightly chewy noodles are enriched with crab meat and a rich broth.

Common additions include quail eggs, shallots, garlic, or shrimp balls. It's recommended to slurp loudly while eating these noodles because that's how the dish is traditionally eaten. Banh canh cua is typically garnished with chopped green onions, cilantro, and bean sprouts, while lime wedges are often served on the side.