1In a medium saucepan, bring the 4 cups of chicken broth to a gentle boil over medium heat.
In a small bowl, mix 1 tablespoon of cornstarch with a little cold water to form a slurry, then stir it into the boiling broth.
Add 1 tablespoon of soy sauce and 1/2 teaspoon of white pepper to the broth, stirring well.
In another bowl, beat the 4 large eggs until well blended.
Slowly pour the beaten eggs into the boiling broth while stirring the soup gently in a circular motion to create egg ribbons.
Chop the 2 green onions finely and add them to the soup.
Let the soup simmer for another minute, then remove from heat.
Serve hot, garnished with additional green onions if desired.