Boil the Noodles: Bring a large pot of water to a boil. Add noodles and cook for 4β8 minutes until just tender al dente, not mushy. Drain immediately, rinse with cold water to stop cooking, then drizzle a few drops of oil and toss. This prevents the noodles from clumping together.
Mix Your Sauce: In a small bowl, combine oyster sauce (3 tbsp), soy sauce (2 tbsp), chicken powder (1Β½ tbsp), sugar (1 tbsp), black pepper (1 tsp), and Thai paste (1 tsp). Mix well.
Heat the Wok: Place your wok or large frying pan on the highest heat setting. Let it heat for 60β90 seconds until it's smoking slightly. Add 30g oil and swirl to coat. This is where restaurant flavor comes from wok hei, the charred, smoky taste you can't get with medium heat.
Cook the Chicken: Add sliced onion and chicken to the hot wok in a single layer. Leave it for 20 seconds and don't move it. Then stir-fry for another 1β3 minutes until white and cooked through. The chicken should have slight golden edges, not be pale and steamed.
Add the Vegetables: Add julienned carrots first. Cook for one minute. Add cabbage and stir-fry for another minute. The vegetables should remain slightly crisp. Overcooked vegetables make chowmein soggy and dull.
Add Sauces: Add Oyster sauce, Soy sauce, Thai paste, Sugar. Mix everything thoroughly until the chicken and vegetables are coated evenly.
Add Noodles and Sauce: Add the boiled noodles into the wok.
Plate and Serve: Serve hot, directly from the wok. Chowmein waits for no one β the texture is best in the first 5 minutes. Garnish with sliced spring onion