Ripe tomatoes and fluffy egg ribbons swim in a light, tangy broth. This healthy, protein-boosted family soup is budget-friendly, low calorie, and a Chinese home-cooking essential.
Wash tomatoes and cut each into small wedges for even cooking and texture.
Heat vegetable oil over medium heat in a soup pot, add tomato wedges, and sauté for 2–3 minutes until softened and slightly caramelized.
Pour in chicken broth, bring to a boil, then reduce to a gentle simmer; let cook for 5 minutes to meld flavors.
Beat eggs thoroughly and, over medium-low heat, slowly drizzle them into the simmering soup while stirring gently to create silky ribbons.
Season with salt, white pepper, and sugar, then add chopped green onion just before turning off the heat to preserve freshness.