Lion's Head Meatballs

Name: Lion's Head Meatballs
Cuisine: Asian, Chinese
Ingredients: bok choy; water for simmering; 300 g minced pork, either hand chopped or store bought (, around 2.5 cups); 1/2 cup chopped lotus root; 3 dashes white pepper; 2 slices ginger; 1 tbsp. light soy sauce; 1 tbsp. oyster sauce; 1/8 tsp. salt; 1 tbsp. cornstarch; 2 tbsp. vegetable cooking oil; 2 scallion; 1 star anise; 1 thumb ginger; 2 tbsp. light soy sauce; 2 tsp. dark soy sauce; 2 dashes white pepper; 1.5 tbsp. rock sugar (, around 20g); 1/2 tbsp. cornstarch