Caramelised leek + thyme focaccia

Our focaccia takes on more of a Welsh flavour than an Italian one, with the addition of perfectly caramelised leeks and the scent of thyme. The method here, using a brine, is a technique we have borrowed from the ever brilliant American chef and author, Samin Nosrat, as it gives the bread a wonderful crispy top and a generous rise. This recipe uses the whole leek, so don’t discard the tops. They tend to hold th