Start to prepare the wonton by chopping the shrimp into small pieces and put it in a mixing bowl.
Add ground pork, onion, sesame oil, egg, salt, garlic powder, and pepper. Mix well.
Lay a piece of wonton wrapper flat on a plate. Scoop 1 1/2 teaspoon of the mixture and place on the middle of the wrapper. Fold the wonton wrapper to form a triangle. Press the sides to keep the meat mixture intact. Gold both sides of the triangle wrapper inward. Set aside. Do this step until the pork mixture is completely consumed.
Make the soup by combining water and chicken broth in a soup pot. Let boil.
Add the rotisserie chicken (with bones). Cover and boil in low heat for 20 minutes. Turn the heat off temporarily.
Remove the chicken and let it cool down. Separate the meat from the bones. Shred the meat.
Turn the heat back on and wait until the liquid reboils. Add the shredded chicken meat.
Put the wontons in the soup pot. Cover and cook for 5 to 10 minutes in low to medium heat.
Add the fish sauce and half of the chopped scallions. Stir.
Transfer to a serving plate. Top with toasted garlic and additional scallions.
Serve. Share and enjoy!