"If you can get on board with Chatsworth Bakehouse’s ruthless ordering system, this is an excellent sandwich. Thick, dimpled wedges of focaccia have golden, crispy crusts and hold weekly changing fillings. Previous sandwiches have included tuna with a creamy basil and garlic aioli, chilli artichokes, and tangy balsamic shallots. Just know that this Crystal Palace bakery doesn't have any seats inside. But this is a lunch we’d hunch against a wall for. Set an alarm for 12:20pm on Monday and refresh the pre-order page until you see the sandwich drop, then load up your basket ahead of time. At 12:30pm you can order. We found that using Google or Apple Pay saves precious seconds. Aim for Wednesday or Thursday pick-up days. Scrapping for Friday is a fool’s game. If you miss out, consider the walk-in menu—we’d suggest arriving 20 or so minutes before they open." - jake missing, rianne shlebak, sinead cranna