3 eating apples, cored
1kg/2lb 4oz medium-sized potatoes, skins left on
4-5 sprigs thyme, leaves only
sea salt and freshly ground black pepper
50g/1戮oz chilled butter, cut into cubes
1 x 250g/9oz whole Reblochon, or similar strong, soft, bloomy-rinded French cheese
250g/9oz pancetta, cut into lardons
4 thick-cut pork chops