- Combine pork, shrimp, minced green onions, 2 teaspoons soy sauce, cornstarch and ginger in medium bowl; mix well.
- Arrange several wonton wrappers on clean surface; cover remaining wrappers to prevent drying out.
- Place 1 teaspoonful pork mixture in center of each wrapper. Fold wrapper over filling to form a triangle. Gently fold center point down and moisten left corner with water. Twist and overlap opposite corner over moistened corner; press firmly to seal.
- Repeat with remaining wrappers.
- Bring water to boil in large saucepan. Add wontons. Boil gently 3 minutes; remove with slotted spoon. Discard water. Pour broth and sherry into same saucepan.
- Cut bok choy crosswise into 1/2-inch slices, separating stems from leaves.
- Add stems to broth mixture; bring to boil. Add cooked wontons; simmer 1 minute. Add bok choy leaves and chopped green onions; simmer 1 minute longer.
- Remove from heat; stir in remaining 2 teaspoons soy sauce and sesame oil. Serve immediately.