freshly cooked cavolo nero, chopped, to serve
1 tbsp snipped fresh chives
1 lemon, zest only
1 bunch fresh flatleaf parsley, chopped
2 large Maris Piper potatoes, peeled, very finely sliced, washed and dried
2 large rosemary sticks
1 shallot, diced
1 tsp Dijon mustard
6 anchovy fillets, chopped and mashed
1 tbsp baby capers
20g/ΒΎoz tomato ketchup
good splash Worcestershire sauce
good few drops Tabasco
black pepper
salt and freshly ground black pepper
1 tbsp olive oil
vegetable oil, for frying
salt and malt vinegar
100²µ/3Β½΄Η³ϊ butter, softened
1 free-range egg yolk
1 calf kidney, cut into small chunks
200g/7oz beef rump, sirloin or fillet