I can assure you that jellyfish is a "fairly common" dish around Shanghai. Besides soy sauce, one can also mix it with some cucumber, black Zhejiang vinegar, f

I can assure you that jellyfish is a "fairly common" dish around Shanghai. Besides soy sauce, one can also mix it with some cucumber, black Zhejiang vinegar, fine slices of chili pepper, and sesame. It's a common cold dish. Source: my mom is Shanghaiese.