It's likely this one https://www.ted.com/talks/jennifer_8_lee_looks_for_general_t...

If you are interested, this was a very good read (by same person): https://www.amazon.com/Fortune-Cookie-Chronicles-Adventures-...

If you are interested in more on the subject, there's a pretty good book, the Fortune Cookie Chronicles.

http://www.amazon.com/The-Fortune-Cookie-Chronicles-Adventur...

Anyone who's interested in a more in-depth look should check out Fortune Cookie Chronicles. http://www.amazon.com/gp/product/0446698970 It really explains why the food at 99.9% of the "Szchewan" and "Peking" etc. places all tastes the same.