4 celery sticks, diced
1 large onion, roughly chopped
300ml/10fl oz chicken stock
1 tbsp grainy mustard
60驳/2录辞锄 plain flour, plus extra for dusting
4 bay leaves, roughly sliced
salt and freshly ground black pepper
50驳/1戮辞锄 butter
2 tbsp full-fat cr猫me fra卯che
1 egg, beaten
2 x 375g packets ready-rolled, all-butter puff pastry
250g/9oz smoked back bacon (about 7 rashers), cut into small pieces
6 skinless chicken legs (thigh and drumstick)
200ml/7fl oz dry white wine