Thai Prawn Green Curry

Name: Thai Prawn Green Curry
Yield: 1 servings
Ingredients: 2 tablespoons sunflower oil; 2 1/4 pounds prawns; 7/8 cup chicken stock; 1 dry pint coconut milk; 8 kaffir lime leaves; 1 tablespoon fish sauce; 2 teaspoons brown sugar; 2 tablespoons lime juice; 1 tablespoon green peppercorns; 1/3 cup coriander leaves; 4 lemongrass; 6 green chillies; 2 inches ginger; 1 teaspoon ground cumin; 1 tablespoon fish sauce