Pour the chicken broth into a large pot and heat over medium-high heat.
Stir in the chopped green onions and bring to a gentle simmer.
In a small bowl, whisk together ⅓ cup cold water, cornstarch, soy sauce, and sugar until smooth.
Slowly stir the mixture into the simmering broth.
Bring to a boil while stirring, then cook for 1 minute until slightly thickened.
Reduce the heat to medium-low.
In another bowl, whisk together the eggs and remaining 2 tablespoons cold water.
Slowly drizzle the eggs into the hot broth while gently stirring in one direction to create delicate egg ribbons.
Remove from the heat immediately.
Serve the Easy Egg Drop Soup Recipe hot with additional chopped green onions if desired.