For the curry paste, place all of the paste ingredients into a small food processor and blend to a smooth paste.
For the noodles, mix half of the curry paste with the cooked drained egg noodles and sesame oil.
For the broth, dry fry the cashew nuts in a frying pan for 2-3 minutes, or until golden-brown, then remove and set aside. Add the remaining curry paste to the pan along with the asparagus and red pepper and fry for 3-4 minutes, coating the vegetables evenly in the paste. Stir in the stock and cream and bring to a gentle simmer for 2-3 minutes, or until the vegetables are tender. Stir in the coriander and the toasted cashews.
Serve the noodles in a soup bowl with the broth spooned over the top, and garnish with the fresh coriander and chives.