Clean and peel the Jerusalem artichokes and chop them into chunks.
Crack the hazelnuts.
Dry roast the hazelnuts on low to medium heat in a frying pan until they start to color light brown. Set aside.
Clean the orange peel fungus and chop in the smaller slices.
Clean the crow garlic in chop into thin slices.
Poor half of the coconut milk to a cooking pot and reduce by about 50% over low to medium heat.
When the coconut milk has reduced add the curry paste and cook for a couple of minutes.
Add the remaining coconut milk and water. Bring to a boil and add the artichokes, wood ears and hogweed. Cook until the artichokes are fork tender.
Remove the hogweed, add the orange peel fungus and crow garlic. Add fish sauce to taste and mix the curry well and serve.