12 asparagus spears, woody ends snapped off
1陆 tbsp chopped lemon thyme leaves
1 large lemon, juice only
2 tbsp chopped parsley
6 banana shallots, quartered lengthways
400ml/14fl oz chicken stock
30g/1oz plain flour
salt and freshly ground black pepper
2 tbsp oil
50驳/1戮辞锄 butter
200ml/7fl oz full-fat cr猫me fra卯che
6 small chicken breasts, boned, skinned