Mother’s Tomato and Egg Clear Soup with Seaweed

My friends tell me that when they felt poorly they would be tucked in bed after a bowl of their mother’s homemade chicken soup. In my home, it was steaming bowlfuls of my mother’s tomato and egg soup that did the job every time. She would skin the tomatoes first (though this is optional), before adding them to simmering vegetable stock, then pour in beaten eggs, lightly stirring, to make a beautiful web-like pattern. She would season it with light soy and fragrant toasted sesame oil then br