After a somewhat stressful train journey from Oxford, we arrive in the capital. It’s a sunny day, and we head to the South Bank to get some street food en route to the Old Vic. We split up and look for clues. I land on Hey Joe Burger Club, for the variety - pasta last night, fine dining tonight, pancakes tomorrow (all the essential food groups). A burger for lunch, then. I have The Griddle, entirely tempted by the cheddar skirt. It’s otherwise a classic smash burger, two patties, cheese, pickles, onions (of both the grilled and crispy varieties). But, crucially, the top potato bun slice is grilled in a halo of cheese that crisps up nicely to form a skirt, a fine textural contrast to the softness of the bun and the meltingness of the burger itself. It’s good stuff for street food, rivalling Shake Shack. Good to know for future reference.