A wholesome, deeply comforting soup crafted from slow-simmered stock, aromatic garden vegetables, and fresh herbs, served with crusty bread.
Bring the fish stock to a boil with lemongrass, galangal, kaffir lime leaves, and chilies; simmer for 5 minutes.
Add the mussels and cover; cook for 4-5 minutes until all shells have opened.
Stir in the coconut milk and warm through without boiling.
Add the fish sauce and lime juice.
Discard any unopened mussels, ladle into bowls, and garnish with coriander.