Heat oil in a saucepan, then add papery dried shrimp and the light green part of the scallions. Sizzle until fragrant.
Carefully pour in 4 cups (1000ml) of water and bring it to a boil.
Use one hand to pour in the beaten eggs in a thin stream, while swirling the water in one direction with a spoon held in the other hand.
Once the egg strands form, add the seaweed, torn into small pieces. Leave to simmer over low heat for 30 seconds.
Turn off the heat and season the soup with light soy sauce, black rice vinegar, sesame oil, salt, and white pepper.
Finally, garnish with the remaining scallions and serve warm.
Notes
1. Dried laver (Zǐ Cài/紫菜) is the same type of seaweed as Japanese nori, but it often comes in a looser form, typically packed into a round disk and wrapped in plastic. See the blog post above to learn more.2. If using regular dried shrimp as a substitute, soak it to soften, then chop it finely.