Egg drop soup, or dan hua tang—literally “egg flower soup”—is a Chinese home cooking staple. It’s simple, quick, and comforting, especially as the weather turns colder.
The “flower” refers to the soup’s characteristic soft, wispy ribbons of egg, formed by slowly pouring in beaten eggs near the end of the cooking process. They add color and texture to the simple chicken broth base, slightly thickened with cornstarch and made fragrant with ginger, scallions, and white pepper.
Egg drop soup is very adaptable, so feel free to throw in other ingredients, such as quick-cooking vegetables or your protein of choice. In this version, diced tomatoes add some welcome brightness.
This recipe calls for making your own basic chicken stock for the base, which is easy if you plan ahead: When cooking other dishes that require cutting chicken meat off the bone, leave a bit of meat on the bones and save them for your future stock. Store-bought or previously homemade chicken stock works great, too.
Tomato Egg Drop Soup
Prep Time: 5 minutes Cook Time: 30 minutesServes 6
- 12 cups water, divided
- 1/2 pound chicken bones, some meat attached
- 6 thin slices ginger
- 6 eggs
- 1 teaspoon rice vinegar, divided
- 2 tablespoons extra-light olive oil
- 5 tomatoes
- 4 stalks scallions, white and green parts separated
- 1/2 teaspoon sea salt, or to taste
- 1/2 teaspoon sugar
- 1/2 teaspoon white pepper
- 3 tablespoons cornstarch
- 3 tablespoons water
- Drizzle of sesame oil
Return the bones to the pot over high heat, and add the remaining 6 cups of water and the ginger. Cover, bring to a boil, then reduce heat to low and simmer, covered, for 20 minutes.
Cut the tomatoes into 1-inch cubes. Mince the scallions, keeping the white and green parts separate.
In a small pan over low heat, add the extra-light olive oil and the white parts of the scallions. Cook until aromatic, about 1 minute. Set aside.
Turn the heat to high. Add the tomatoes and cook until softened, about 3 minutes. Skim off any foam. Add the scallion oil and season with salt, sugar, and white pepper to taste.
In a small bowl, make a cornstarch slurry by mixing together 3 tablespoons cornstarch and 3 tablespoons water until smooth. Pour the cornstarch slurry into the soup in a circular motion and stir until thickened.
Bring the soup back to a boil. Slowly pour in the egg whites in a circular motion, then do the same with the egg yolks. Stir gently. Top with the green parts of the scallions and a drizzle of sesame oil, and serve.