50²µ/1¾´Ç³ú chives, finely chopped
1 garlic clove
10 large chipping potatoes, washed, peeled and cut into 5cm/2in chips
2 sprigs fresh thyme
50²µ/1¾´Ç³ú truffle paste
50²µ/1¾´Ç³ú fresh black winter truffle
1 tbsp Dijon mustard
1 bay leaf
500ml/18fl oz beef stock
salt and freshly ground black pepper
400ml/14fl oz rapeseed oil
rapeseed oil, for frying
Cornish sea salt
1 tbsp sherry vinegar
100ml/3½fl oz port
250g/9oz 5-year aged Cornish cheddar, grated
2 large free-range egg yolks
125g/4½oz 36-month aged Parmesan, grated
200ml/7fl oz Madeira