Borough market brownie-maker Matt Jones shared his infamous dense chocolate brownie recipe on BBC Good Food, and I am posting it here for safe-keeping! For anyone who has tasted one of these brownies, the experience is sublime.......deep, intense and chewy brownies that are packed full of lucious chocolate! Borough Market is London's oldest food market, its origins date back from the time when the Romans built the original London Bridge. And, although it has moved from where it was originally established, Borough Market has occupied its current site for the last 250 years. You can find both food and non-food items in this market, but locals regularly go here to get fresh produce from various parts of the British Isles. One of the most popular foodie treats in the market, is the ostrich burger, as well as these delicious brownies. Makes 12 LARGE squidgy brownies.