In a small bowl, coat the diced chicken breast with cornstarch.
In a deep saucepan, combine water, chicken or vegetable broth, and water chestnuts.
Bring to a boil.
Add the cornstarch-coated chicken to the boiling broth and cook for about 10 minutes.
Beat the egg and slowly stir it into the soup.
Dish the soup into a large bowl and sprinkle chopped scallions on top.
Notes / Tips / Wine Advice:
Wine Advice:
Pair this light and flavorful soup with a crisp and aromatic white wine, such as a Sauvignon Blanc or a Pinot Grigio. The bright acidity and citrusy notes of the wine complement the subtle flavors of the soup.