Tomato Egg Drop Soup

The secret to beautiful egg ribbons is all about the thickness of the soup, the heat, and how you add the eggs.
1. Thicken the soup first. A little cornstarch helps give the broth enough body to suspend and hold the egg ribbons. Without it, the eggs can rise to the top or break into clumps instead of forming delicate ribbons.
2. Keep the heat low. The soup should be hot and barely simmering, with no aggressive rolling bubbles. A hard boil can break the eggs apart too quickly, creating small clumps and a cloudy soup.
3. Create a lazy vortex. Use a ladle or spoon to gently stir the broth in one direction until a smooth, steady whirlpool forms.
4. Slowly drizzle in the eggs. Pour the lightly beaten eggs in a thin, slow stream into the moving broth.
5. Stop stirring immediately. Once the eggs are in, leave the soup untouched for 15 to 30 seconds. This gives the egg ribbons time to cook and set. Stirring too soon can break them apart and make the soup cloudy.

You can also adjust the texture of the "egg flowers" depending on how you beat the eggs and stir the soup:
For large, silky ribbons: Lightly beat the eggs so you can still see streaks of yellow and white. Create a slow, gentle vortex before slowly drizzling them in.
For small, wispy strands: Whisk the eggs thoroughly until completely blended. Stir the soup a little faster to create a quicker whirlpool as you slowly pour in the eggs.

Add the eggs at the very end of cooking to keep them silky, tender, and delicate without overcooking.
First, thicken the soup with a cornstarch slurry and let it gently bubble for 1 to 2 minutes, until the broth thickens and becomes glossy. Then lower the heat to barely simmering. Create a gentle swirl in the broth to form a whirlpool, slowly drizzle in the beaten eggs, and let them sit undisturbed for about 20 seconds so they can set into beautiful egg ribbons, or “egg flowers.

Yes! Cornstarch helps give egg drop soup enough body to suspend and hold those delicate egg ribbons. Without it, the eggs can float to the top or break into clumps instead of forming beautiful, silky ribbons.
Don't add cornstarch directly to the hot soup. First, mix it with a little cold water or broth to make a smooth cornstarch slurry, then stir it into the soup. This helps it blend evenly and prevents lumps.

The best tomatoes for tomato egg drop soup are either fresh or canned. The key is to choose tomatoes that are ripe, flavorful, and break down easily into the broth.
If using fresh tomatoes, ripe red Roma (plum) or standard vine-ripened tomatoes work best. I prefer Roma tomatoes because they have a meaty flesh, concentrated flavor, and a slightly sweet taste. Chop the tomatoes and cook them in a little oil over medium heat for 2 to 3 minutes before adding the broth or water. Avoid hard, unripe, or green-tinged tomatoes, since they lack natural sweetness and won't break down as easily.
If using canned tomatoes, whole plum tomatoes are my favorite. They’re harvested and canned at peak ripeness, giving you consistently sweet, rich, flavorful tomatoes all year long. Since they’re already blanched and softened, they break down into the soup much faster than fresh tomatoes. They’re also a convenient way to enjoy tomato egg drop soup year-round, even when fresh tomatoes aren't in season.

No, I don’t recommend freezing egg drop soup. While it is safe to freeze, the texture can change significantly after thawing. The cornstarch used to thicken the soup can separate, leaving the broth watery, thin, or slightly grainy.
The delicate, silky egg ribbons can also lose their tender texture and become spongy, tough, or rubbery after freezing and thawing. For the best texture, egg drop soup is best enjoyed fresh or stored in the refrigerator for a few days.