Yep Olde Cheshire Cheese:
Maison Bertaux(Soho) for tea and cake
Brasserie Zedel (Piccadilly)
The French House (Soho)
Discussion
Don't get your phone stolen:)
Thank you.
Success! Thanks for the recommendation! 
It's amazing the place is still there.
Maison Bertaux - The oldest cake shop in Soho, London