A golden, fried schnitzel stands high on the podium in the pantheon of great sandwiches. And if you’re after a handful, then a trip to Johnny Schnitzel is very much worth your while. The idyllic deli sits on a quiet corner between Islington and Clerkenwell and, with a few tables outside, is an excellent choice for a not-light lunch. Nothing about these brutish focaccia sandwiches are subtle. The bread is doughy and flecked with olives, the pounded meat crispy and tender, and a pile of mayo-slathered, crunchy slaw the perfect foil for this KO of a sandwich.