Montgomery cheddar, poilâne sourdough bread, and a sprinkle of onions and leeks makes for a tasty toastie (grilled cheese sandwich to Americans).

If you can find a quiet day, or are prepared to battle through hordes of tourists, you’ll find this in Borough Market – just follow the smell of cheese!

According to The Atlantic:

I took one big bite and the sandwich immediately went onto my list of best things I’ve ever had.