RICHARD EHRLICH is convinced that's it's spring: firstly, the Chelsea Flower Show kicks off in a week's time; secondly, 'G&Ts are back'; and, finally, the days are getting longer, 'which means more time to be outside drinking delicious cocktails'. Ehrlich recommends Fevertree Tonic for his G&Ts (1.30/200ml, call 020 7349 4922 for stockists), describing it as 'fresh, clean, and complex'.