Start by finely chopping the ginger and garlic, and adding it to a large pan over a medium heat with half of the olive oil.
When it starts to sizzle, bruise the lemongrass with a knife and add this to the pan, along with the sliced coriander stalks and tamarind paste. Cook, stirring often, for 2 minutes, then add the coconut milk and the same amount again of water. Add the soy sauce, fish sauce and palm sugar.
Bring the broth to a simmer then add the sugarsnap peas and noodles. Simmer for 5-7 minutes, while you cook the salmon.
To cook the salmon, heat the remaining oil in a frying pan and add the salmon, skin side down. Cook for 5 minutes, until the skin is crisp, then flip over and cook for another 1-2 minutes.
Stir the chopped coriander leaves into the broth. To serve, ladle the broth into bowls and top with the salmon. Sprinkle over some chopped spring onion and peanuts. Enjoy!