Oat crusted hake, smoked mackerel and mussel velouté

By Anna Haugh From Saturday Kitchen Ingredients 1 tsp coriander seeds 2 tsp sesame seeds 20g/¾oz oats 2 x 100g/3½oz hake portions 1 free-range egg white, beaten olive oil, for greasing 200g/7oz mussels, scrubbed and debearded 1 garlic clove, crushed 1 tbsp dry white wine 4 …