A deeply aromatic, slow-simmered bone broth perfumed with charred ginger, star anise, and cinnamon, ladled over silky noodles and fresh herbs.
Slice the fish and season it with a little salt.
Simmer the stock with the turmeric, galangal, and lemongrass for 15 minutes.
Add the tomatoes and simmer for 5 minutes.
Stir in the fish sauce and sugar.
Add the fish and poach for 4 minutes until just cooked.
Scatter with spring onions and serve hot with rice.