2 cod fillets in brocoli mornay sauce

cod 50.0% , skimmed milk 23.0% , broccoli 8.0% , cheddar 4.0% , Stabilised Single Cream 2.0% , butter 2.0% , white wine 2.0% , onion 2.0% , modified corn starch 2.0% , wheat flour 2.0% , vegetable broth 1.5% , salt 0.8% , dehydrated onion 0.4% , Acid 0.2% , yeast 0.1% , white pepper 0.1%