London’s not all tea and crumpets—there’s a vibrant street food bustling in Old Blighty’s markets. From guacamole-smothered, double cut potatoes to arepas and jian bing, save your appetite for global deliciousness on the go. If you’re exploring London you need to explore all the street food. The best grilled cheese sandwich that you find anywhere in the world. We’ve pounded the pavements and challenged our taste buds to find the very best.