By chance (or out of desperation, actually) I came up with a pretty decent homemade noodle sauce: a tablespoon each of olive oil and kicap manis, three drops of sesame oil, a dash of garlic powder and a grind of peppercorn. Mix it well in the bowl before adding the noodles and toss. Simple and well, decent.
JL said it reminded him of the bak-chor mee which a former colleague used to have almost every time they lunch together near the office, along River Valley Road. I think he was referring to the bowl composition. Don't worry, darling, there's no black vinegar in this one. But please don't remind me anymore of hawker food I missed from Singapore...