Wonton Soup with Bok Choy

Ingredients

 * 2 lb. country-style pork ribs
 * 2 lb. chicken thighs, legs, and wings
 * 4 scallions, coarsely chopped
 * 1 (2-inch) piece peeled fresh ginger, chopped
 * 12 cups water
 * 1½ lb. bok choy, leaves halved lengthwise, then with stalks and leaves thinly sliced crosswise
 * 1½ teaspoon salt
 * ¼ teaspoon white pepper
 * ½ lb ground pork
 * 1 large egg yolk
 * 2 scallions, finely chopped
 * 1 (1½-inch) piece peeled fresh ginger, finely chopped
 * 1 tablespoon soy sauce
 * 1 teaspoon rice vinegar
 * ½ teaspoon Asian sesame oil
 * ½ teaspoon salt
 * ¼ teaspoon white pepper

Directions

 * 1) Place the ribs, chicken, ginger, scallions, and water in pot until the meat is tender (approximately 4-5 hours).
 * 2) Chill for approximately 1-1.5 hours.
 * 3) Mix together scallions, ginger, soy, vinegar, sesame oil , salt , pork , and the white pepper in a bowl.
 * 4) Fill the wonton with approximately 1 teaspoon of filling. Then seal the wonton by lifting the two opposite corners together.
 * 5) Heat soup and add bok choy, wontons, and salt.
 * 6) Cook for approximately 4-6 minutes. Pour in the bowls with the wonton soup.