[Pseudoscience-is-malarkey (OP)]

I'm not asking for an A+ essay, just do your best. I could google an answer, but there's no fun in that.

[alancalverd]

Sadly, The Old Friend in LImehouse has closed, but

https://www.thatsmags.com/guangzhou/post/17619/the-last-three-restaurants-in-london-s-forgotten-chinatown

is worth a read. Or try Ley-On in Soho - though the competition is fierce in Chinatown so anywhere you can see Chinese folk having lunch is worth a visit.

Jack's Place, York Road, Battersea, is the only other restaurant I'd care to visit in London.

[Bored chemist]

Another sad loss.
https://en.wikipedia.org/wiki/Wong_Kei
The original version was wonderful.

[paul cotter]

There were two excellent curry houses in Barnet that I used to frequent. That was 40 years ago and I doubt if they still exist. If I could time travel, that would be where the optimum meal would be.