Pour water in a cooking pot. Let boil.
Add the pork neck bones and medium chopped onion. Continue to boil between low to medium heat for 1 ½ hours.
Meanwhile, prepare the wonton by combining all the wonton ingredients in a bowl (except the wrapper). Mix well. Scoop 2 teaspoons of pork mixture and arrange it in the middle of the wrapper. Seal by folding the wrapper in a way that both ends meet together forming a triangular shape. Press against the side of the wonton to ensure that it remains intact. Set aside.
Remove the pork neck bones from the pot. Set it aside. (You can use it to make another dish).
Add 1 teaspoon salt, 1 teaspoon garlic powder, and ½ teaspoon ground black pepper in the cooking pot. Stir.
Add the noodles and wonton into the pot. Let the liquid re-boil. Continue to cook 8 minutes.
Add the scallions and half of the chili oil and toasted garlic. Cook for 2 minutes.
Transfer to a bowl. Top with remaining toasted garlic and chili oil.
Serve. Share and enjoy!