As I roamed rather aimlessly through the gorgeous, narrow streets of Sandwich, I very nearly missed my lunch destination. On the corner of Strand Street, Hay’s Shack from the outside is an understated restaurant with Mediterranean blue door frames, fresh signage and stickers on the window. It suits the town which, despite its natural charm, has of late been somewhat overshadowed by other, trendier seaside towns like Folkestone or Margate. As unassuming as it may be, Hay’s Shack is currently a five-star rated restaurant on Tripadvisor. It has won a lot of praise for its menu and dedication to f…