Combine the chicken broth, the white part of the green onion and ginger in a small pot. Cook over high heat until brought to a boil. Turn to a low heat and let the soup reduce to a simmer.
Combine cornstarch, white pepper, turmeric, sea salt and 2 tablespoons of water in a small bowl. Whisk until cornstarch is completely dissolved. Swirl into the soup and mix well with a spatula.
To add eggs, hold a fork (or two chopsticks slightly apart) across the top of a small bowl, drizzle the egg mixture slowly through the gaps into the soup. Let the eggs set for a few seconds, then stir gently to break up the egg to the desired sized pieces.
Drizzle sesame oil and sprinkle with the green part of the green onion.
Serve warm.
Notes
If you want the egg ribbons look even better, try to use 2 whole eggs and 2 egg whites. Adding more egg white will make the egg ribbons more consistent. If you have leftover egg whites from baking, now it's a good chance to use them!