- 55g/2oz broccoli, cut into florets
- 400ml/14fl oz fish stock
- 1 stalk lemongrass, tough outer leaves removed, inside chopped
- ¼ onion, chopped
- 1 tbsp tomato purée
- 3 heads from tiger prawns (see below)
- 1 tbsp vegetable oil
- ½ onion, sliced
- 2 garlic cloves, finely chopped
- 1 red chilli, finely sliced
- 3 tiger prawns, peeled and de-veined
- 55g/2oz cashew nuts, toasted
- 1 lime, juice only
- 2 tbsp chopped fresh coriander
- 1 tbsp chopped fresh chives
- Bring a saucepan of water to the boil. Add the broccoli florets and cook for 1-2 minutes, or until they have softened slightly but are still firm. Drain.
- Simmer the fish stock, lemongrass, chopped onion and tomato purée in a separate saucepan over a medium heat.
- Add the prawn heads to the stock. Simmer for 5-7 minutes, then remove from the heat, strain, and set the stock aside. Discard the prawn heads.
- For the prawns and broccoli, heat the oil over a medium heat, then fry the onion, garlic and chilli for 3-4 minutes to soften.
- Add the prawns and fry until they are pink and cooked through. Then add the toasted cashew nuts and the broccoli florets.
- Pour 150ml/5fl oz of the reserved fish stock into the pan, mix well, then stir in the lime juice. Heat through for 2-3 minutes, then stir in the coriander and chives.
- To serve, spoon the broccoli and broth into a bowl and arrange the prawns on top of the dish.