"Definitely a bit of a showpiece for such a common ingredient, the smoked-eel butter takes the old potato to another place," says Garratt. "The reveal of the potatoes from their hay 'jackets' will create plenty of interest. It's worth sourcing some really good cream and making the butter yourself, as is changing or mixing up the potato varieties."
Note Hay is available from most pet-supply stores. Look for dry, straw-like hay. Garratt and Hird use a house-made cream for churning into butter.