Steamed Red Emperor with Tomato and Lemongrass Broth

Tomato and Lemongrass Broth

• 1 litre (35 fl oz/4 cups) fish stock

To make the broth, put all the ingredients except the coriander and spring onion into a saucepan and bring to the boil. Add the coriander and spring onion, reduce the heat and simmer gently for 20 minutes. Push through a conical strainer, bring back to the boil and allow to cool.

Place the red emperor in a fish kettle or bamboo steamer, add the stock to the kettle or sa