4 tbsp chopped basil
1 garlic clove, finely sliced
1 lemon, zest only
freshly ground pepper
1 dried chilli
salt
1 tbsp vegetable oil
2 tbsp mascarpone cheese
500ml/18fl oz skimmed milk
4 fresh cod fillets, weighing about 180g/6录oz each
125ml/4录fl oz dry white wine