Prawns and Fish in a Herb Sauce

Name: Prawns and Fish in a Herb Sauce
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Cuisine: Asian
Ingredients: 3 cloves garlic; 5 cm ginger; 1 leek; 4 green chillies; 1 tsp vegetable oil; 4 tbsp mustard oil; 1 tbsp ground coriander; 1/2 tsp fennel seeds; 1 tbsp crushed yellow mustard seeds; 175 ml coconut milk; 8oz monkfish; 8 oz prawns; 115 g coriander