Cut noodles into strips 2 cm (¾ in) wide and place in a bowl. Pour boiling water over and gently pull them apart with a pair of chopsticks. Drain immediately and rinse under cold water to prevent overcooking. Drain well and mix with 1 teaspoon of peanut oil to prevent sticking.
Heat remaining oil in a hot wok and stir fry garlic and chilli for 30 seconds. Add prawns, squid, pork and sau