125g/4陆 oz baby button mushrooms
125g/4陆 oz pearl onions
4 large chipping potatoes, peeled and cut into fine chips
2 shallots, finely sliced
4 tbsp tarragon, finely chopped
300ml/10fl oz chicken stock
salt and freshly ground black pepper
sea salt, to taste
1 tbsp vegetable oil
vegetable oil, for deep frying
50驳/1戮辞锄 butter
150ml/5fl oz double cream
2 free-range egg yolks
4 chicken breasts, boneless and skinless, cut into chunks
200ml/7fl oz white wine