Asian Fish Soup

1. Add shrimp shells and 2 liters water to a pot. Bring to a boil, reduce heat and simmer for 15 minutes.

2. In a separate pot, cook lo mein noodles according to package directions. Drain and rinse with cold water to stop the cooking process.

3. Using a slotted spoon, remove shrimp shells from the soup and discard them. Add fish sauce, chili garlic sauce, lime juice, dried lemongrass and ginger. Cook for a few minutes, then add cod, bring to a boil, reduce heat and continue to cook until fish is cooked through.

4. Add lo mein noodles to a bowl, ladle in the soup, and top generously with watercress.