Cooked white rice, for serving
2 packages dried vermicelli noodles
6 Napa cabbage leaves
5 heads baby bok choy, halved
1 1/2 cups chicken stock or low-sodium broth
3 1/2 tbsp. canola, vegetable, or peanut oil, divided
2 1/2 tsp. cornstarch, divided
3 tsp. soy sauce, divided
3/4 tsp. ground white pepper, divided
3 tsp. minced garlic
1/2 tsp. kosher salt
2 tsp. Shaoxing wine
1/2 tsp. sugar
1 egg yolk
2 scallions
1 tsp. minced peeled ginger
1/4 cup drained canned water chestnuts, diced
4 oz. ground or minced fatty pork
8 oz. ground pork
1 block firm tofu