A dear friend of mine is coming over from the States in a couple of weeks and I’ve promised to take her out in London for the best of all things: tea and cake. I have a couple of flimsy ideas of where to go, but I'm not all that familiar with cafes in town beyond quick and easy places like Costa or Nero. I was wondering if anyone could recommend a cafe that does particularly amazing cakes and is good for chilling out in? I’m thinking somewhere central or at least easily accessible from Waterloo. Any suggestions would be a great help. I wish I could just take her to the Ritz! Alas! (Sorry if this question has been asked/answered before).