Roast Cod, Sweetcorn & White Bean Fricassee, Sea Vegetables

For the chicken sweetcorn stock: 2.5kg chicken wings with bones 700g white mirepoix 4 whole sweetcorn kernals, removed, husks kept ¼ bunch of thyme 3 bay leaves 7g black peppercorns Roast the chick bones at 160 degrees for 35 minutes,…