Mix the chilli flakes, 3 tablespoons of groundnut oil, the crushed garlic and ginger together in a bowl and leave to one side
Remove the shiitake mushrooms from the soaking liquid
Strain the soaking liquid and add to the chicken chicken stock to make up to 1 litre
Slice the mushrooms
Preheat a wok or large frying pan on a high heat
Add the remaining groundnut oil and the pork fillet
Stir-fry for two minutes until the pork begins to colour
Add the spring onion, courgette and white cabbage and stir-fry for another 2 minutes
Lower the heat to medium and add the chilli paste, stirring all the time
Take care not to burn the paste, otherwise it will be bitter
Add the clams, prawns, mussels and squid and stir to combine
Add the chicken stock and mushroom soaking liquid and bring to the boil
Immediately reduce the heat, cover the pan with foil and simmer gently for 5 minutes until the shellfish have opened and are cooked
Cook the noodles in boiling water according to manufacturer’s instructions (the noodles I used took 1 minute to cook)
Drain and rinse briefly in cold water
Divide the noodles and the seafood and vegetable soup between four warm soup bowls and serve immediately