1 carrot, very finely chopped
1 celery stalk, very finely chopped
300g/10陆oz button mushrooms, halved
150g /5陆oz small onions, peeled
1 tbsp finely chopped fresh parsley
500ml/18fl oz chicken stock
flour, for dusting
freshly grated nutmeg, to taste
8 tbsp olive oil
3 free range egg yolks, beaten with 4 tsp of milk
400g /14oz chicken thighs, skinned and boned
200ml/7fl oz dry white wine