ΒΌ lemon, juice only
4 large chipping potatoes, cut into 1cm x 7.5cm/Β½in x 3in batons
1 small banana shallot, finely diced
2-3 tbsp tarragon, leaves picked and chopped
1 tbsp olive oil
vegetable oil, for deep-frying
2 tbsp tarragon vinegar
1 tsp white peppercorns
200g/7oz butter, melted
4 eggs, yolks only
4 x 200g/7oz fillet steaks
50ml/2fl oz white wine