Colin Murray discovers a brown sauce revival and the advantages of getting fish from a fishmonger as he visits Derry/Londonderry's Walled City Market. Briony-May Williams explores how Somerset is rivalling France in cheese productions, and Onkar Singh Purewal discovers the secrets of beekeeping. Chef Julie Lin is in Dundee finding out how bakers keep up with demand around the clock.

Sean Fletcher and Edith Bowman search for tips and treats from food producers as they explore Leicester Market, with masterclasses in fajitas and gelato. Ryan Hand discovers why some snacks in our shops seem to be shrinking, and Michela Chiappa reveals what makes a perfect coffee. Chef Julie Lin is on a mission to discover the story behind Scotland's square sausages.