Valentine battles the tide when he travels to Holy Island off the coast of Northumberland for the plumpest mussels to make his delicious take on a Cornish pasty - a mussel empanada. He sets sail from Cornwall in search of the ultimate autumn treat of delicious deep fried oysters, and he tries to get a group of lifeguards hooked on his all time favourite fish with a quick and simple supper of mackerel on toast. If you eat food that's in season you get the best flavour and the best bargains. Why eat anything else?