
Make the dressing by combining the soy sauce, rice wine vinegar, sugar, grapeseed oil, minced garlic, and finely chopped bird's eye chili in a jar. Shake well until the sugar dissolves, then let it sit for 5 minutes so the flavors can meld.
Prepare the dried vermicelli noodles according to the package directions, usually by soaking them in hot water for about 2 minutes until just tender. Drain thoroughly and let them rest for 10 minutes so excess moisture evaporates; if needed, spread them on a clean kitchen towel to dry slightly.
Place the drained noodles in a large bowl with the shredded cabbage, shredded carrot, bean sprouts, sliced green onions, and cilantro leaves. Toss gently to distribute the vegetables evenly through the noodles.
Pour the dressing over the salad just before serving and toss until everything is lightly coated. Top with fried Asian shallots and sliced red chili, if using, and serve immediately.




