What is shanghai sauce?

"Shanghai Sauce" is not a recognized culinary term. There is no widely known or established sauce with that name.

It's possible that you might be thinking of a different sauce, or it might be a localized or family recipe with a unique name.

To help me understand what you're looking for, please tell me:

* Where did you hear the term "Shanghai Sauce"? (e.g., a restaurant menu, cookbook, friend's recipe)

* What kind of flavor profile are you expecting? (e.g., sweet, savory, spicy, tangy)

* What kind of dish is it typically used on? (e.g., noodles, meat, vegetables)

With more information, I can better assist you in identifying the sauce you're thinking of.