Well, no Fontina sadly, so substituted it with Talleggio and grated Parmesan. The end result was a delicious, savoury macaroni cheese, just perfect for a 'dreich' night, as my old Mum and Dad would have said. Delicious contrast of the rich, bubbling sauce with the crisp freshness of the Pear, Fennel and Watercress Salad from the previous posting. Thanks for a great variation on Mac and Cheese, Nigel! Stop licking the screen.