If you are as carnivorous as we are, proper beef burgers are a must at least once a week! In London, we found that the best place for a good burger, reasonably priced, family friendly and very civilised, and of course served with a good glass of red wine is Bar Boulud at Mandarin Oriental, Knightsbridge. Of course, this is all pre-Covid. During the lockdown period, we have all had…