The best of British burgers Urban 1/4, 1B Kelham Island, Sheffield (0114) 453 9239 http://www.urbanquarter.co Towering burgers tucked under mounds of meat in brioche buns; classic cocktails served in retro glass milk bottles; warm home-made doughnuts tucked in mesh baskets – my mouth melts at the dishes whizzing by us as we step in to…