Peel the jicama and carrot, then cut them into fine, uniform strips. This ensures even cooking and a pleasing texture.
Thinly slice the presoaked shitake mushrooms and mince the garlic.
Heat cooking oil in a wok or large frying pan over low to medium heat. Add the dried cuttlefish floss. Be careful not to burn the dried cuttlefish. Adjust heat as necessary.
Add the minced garlic and sauté until fragrant, about 30 seconds.
Add the prawns to the wok and stir-fry until they turn pink and are just cooked through.
Add the jicama, carrot, and shitake mushrooms. Stir-fry for 5-7 minutes, allowing the vegetables, ensuring everything is well combined.
Season the dish with salt to taste.
Once the jicama is tender but still retains a slight crunch, remove the wok from heat.
Serve the jiu hu char warm, garnished with fried shallots. Enjoy it as a side dish with steamed rice or wrapped in crisp lettuce leaves, accompanied by a side of sambal belacan for a spicy kick.