Malaysian
Separate the noodle strands by hand; mix the light and dark soy sauces with the sugar in a small bowl.
Cook in 2 batches: heat 3 tbsp of the oil in a wok over high heat until smoking, add half the garlic and chili paste and stir for 20 seconds.
Add half the prawns and stir-fry for 1 minute until they turn pink.
Add half the noodles and half the sauce and toss for 2 minutes until the noodles are evenly colored and lightly charred.
Push the noodles aside, crack in 2 eggs, scramble them briefly and fold them through the noodles.
Add half the bean sprouts and chives, season with salt and pepper and toss for 1 minute until just wilted.
Serve at once and repeat with the second batch.