To marinate the pork ribs:
3 pounds pork ribs, cut into 2 to 3-inch pieces
1 tablespoon shaoxing wine
1/2 teaspoon dark soy sauce
1/2 teaspoon salt
1/4 teaspoon sugar
For the rest of the dish:
2 tablespoons oil, plus ½ cup
1 slice ginger, smashed with a cleaver
1/4 cup minced shallots
6 cloves garlic, smashed lightly
1 tablespoon Shaoxing wine
2 tablespoons ground bean sauce
2 teaspoons hoisin sauce
1 teaspoon soy sauce
1/2 teaspoon salt
1/8 teaspoon five spice powder
1/4 teaspoon fresh ground white pepper
1/2 teaspoon sesame oil
4 cups low sodium chicken stock
2 pounds large taro root, cut into 2 to 3-inch pieces
2 scallions, cut into 2-inch pieces