Korean Egg Drop Soup: Silky Gyeran-guk at Home

Korean egg drop soup, or gyeran-guk, is a light Korean soup made by stirring beaten eggs into gently simmering broth, usually with scallions and a little garlic. It comes together quickly, tastes savory without feeling heavy, and works as an easy side dish beside rice and other Korean-style meals; broth and seasoning vary from cook to cook.

Ingredients

6 cups (1.42 L) low-sodium anchovy-kelp stock, chicken broth, or vegetable broth
3 large eggs (about 150 g without shells)
2 medium scallions (about 30 g), thinly sliced, with the white and green parts separated
1 small garlic clove (about 3 g), finely minced
1 tablespoon (15 ml) Korean soup soy sauce, or guk-ganjang
1 teaspoon (5 ml) fish sauce, optional
1 teaspoon (5 ml) toasted sesame oil
¼ teaspoon (about 1.5 g) fine salt, plus more as needed
⅛ teaspoon (about 0.3 g) ground black pepper
1 teaspoon (3 g) toasted sesame seeds, optional, for serving

Instructions

Prepare the ingredients before heating the broth. Slice the scallions, keeping the pale parts separate from the green tops, and mince the garlic. Crack the eggs into a bowl and beat with a fork or whisk just until the whites and yolks are blended. You do not need to whip in foam; a few streaks are fine, though a thoroughly mixed egg makes more even ribbons.
Pour the stock into a medium saucepan and set it over medium heat. Bring it to a gentle simmer, which should take about 5 minutes depending on the pan and burner. Avoid a hard boil: vigorous bubbling can break the egg into tiny, ragged pieces and make the broth seem cloudy. If using homemade or full-salt stock, hold back on added salt until you taste the finished broth.
Add the minced garlic and the sliced scallion whites. Stir in the soup soy sauce, optional fish sauce, salt, and black pepper. Let the broth simmer gently for about 2 minutes so the garlic mellows and the scallion flavors season the liquid. Taste a spoonful; the broth should be savory but not overly salty, since the eggs will soften its intensity.
Lower the heat so the broth is barely bubbling. Stir the broth in a slow circle, then pour in the beaten eggs in a thin, steady stream over about 20 to 30 seconds. Let the egg sit undisturbed for 10 seconds so it begins to set, then use chopsticks or a spoon to make one or two gentle sweeps through the pot. This creates soft ribbons rather than breaking the egg into fine bits. Do not keep stirring.
Cook gently for about 2 to 3 minutes, until the egg ribbons are set and a thick cluster of curds reaches 160°F (71°C) on a food thermometer. The USDA FSIS safe minimum temperature for egg dishes is 160°F (71°C). Keep the soup at a gentle simmer while checking; do not let it boil vigorously. Remove the pan from the heat as soon as the egg is cooked, then stir in the sesame oil and scallion greens.
Taste and adjust with a small pinch of salt or a few drops of soup soy sauce if needed. Ladle into warm bowls and finish with sesame seeds, if using. Serve promptly while the egg is tender and the broth is hot.

Tips

Use a gentle simmer. A rolling boil makes the egg break up quickly and can toughen the curds. Lower the heat before pouring, and give the egg a few seconds to set before moving it. If you prefer small, delicate strands, stir more continuously as you pour; for broad ribbons, leave the egg mostly alone.
Season after choosing your broth. Anchovy-kelp stock and soup soy sauce give the soup a familiar Korean savory flavor, but both can vary in saltiness. If you cannot find guk-ganjang, use regular low-sodium soy sauce in the same amount. It will taste a little sweeter and darker and may make the broth less clean-tasting, so add it gradually and adjust salt last.
Make a vegetarian bowl. Choose vegetable broth and leave out the fish sauce; check that any prepared stock is vegetarian. The soup will be less briny and ocean-savory than one made with anchovy stock, but scallion, garlic, sesame, and a little extra soy sauce still make a rounded broth. Add soy sauce by the teaspoon to avoid oversalting.
Do not overcook the egg. Once the curds are fully set and reach the food-safe temperature, take the pot off the burner. Continued simmering can make the egg firm and spongy. The soup will remain hot in the pan, so there is no need to leave it bubbling while setting out bowls.

Serving Suggestions

Serve gyeran-guk hot in small bowls as part of a Korean-style meal, where it can be sipped between bites of rice and more strongly seasoned dishes. It pairs especially well with steamed short-grain rice, grilled fish, pan-fried tofu, or a simple plate of sautéed vegetables. If the rest of the meal is salty or spicy, keep the soup mild; its gentle broth gives the palate a quieter contrast.

For a quick lunch, ladle the soup over a bowl of freshly cooked rice, or serve it alongside rice and kimchi. Add the kimchi at the table rather than simmering it in the pot if you want to preserve the soup’s delicate flavor. A few extra scallion greens or sesame seeds are enough garnish. If you want a more substantial meal, serve a larger bowl with rice and a protein such as tofu, fish, or leftover cooked chicken rather than loading the soup with so many additions that it loses its light texture.

Variations

Use a different broth: Anchovy-kelp stock is a common base for Korean soups, but chicken broth makes a rounder, more familiar flavor, while vegetable broth keeps the recipe meat-free. If making anchovy-kelp stock from scratch, strain it before using so small pieces of kelp or anchovy do not interfere with the smooth egg ribbons. A good-quality prepared broth is a practical shortcut.

Add a little heat: Put a small pinch of gochugaru (Korean red pepper flakes) in each serving bowl, or stir about ¼ teaspoon (about 0.5 g) into the broth with the seasonings. Gochugaru adds mild warmth and a red tint; it is not the same as hot cayenne, so start small if substituting cayenne. A few drops of chili oil at the table are another easy option.

Add soft tofu: Cut about ½ cup (125 g) of soft or silken tofu into small cubes and add it to the seasoned broth before pouring in the egg. Warm it gently for 2 to 3 minutes without breaking it up. The tofu makes the soup more filling and gives it a softer, more delicate texture. Avoid vigorous stirring once the tofu is in the pot.

Make it a little heartier: Add ½ cup (75 g) thinly sliced mushrooms or ½ cup (50 g) finely shredded zucchini to the broth with the scallion whites. Simmer until just tender before adding the egg, allowing a little extra cooking time as needed. These additions bring their own moisture and flavor, so taste the broth again before adding more salt.

Storage and Reheating

Egg ribbons are softest just after cooking, so make only what you expect to serve when texture is the priority. If you have leftovers, transfer them to a shallow covered container and refrigerate within 2 hours. Keep the soup refrigerated for 3 to 4 days. It can be frozen in a freezer-safe container for up to 2 months, although the egg may become grainy or firmer after thawing; freezing is best reserved for situations where texture matters less.

Reheat only the portion you plan to eat. Warm it in a small saucepan over low to medium-low heat, stirring gently, until the soup reaches 165°F (74°C), the safe temperature for reheated leftovers. Avoid a hard boil, which can toughen the egg. A microwave also works: cover the bowl loosely, heat in short intervals, stir carefully between intervals, and check that the soup is steaming hot throughout and reaches 165°F (74°C). Do not repeatedly cool and reheat the same batch.

Frequently Asked Questions

Is Korean egg drop soup the same as Chinese egg drop soup?

They share the basic technique of pouring beaten egg into hot broth, but they are not always seasoned or served the same way. Gyeran-guk commonly uses Korean soup soy sauce and may use anchovy-kelp stock, scallions, and garlic. Chinese egg drop soup often has a different broth and seasoning profile, and recipes vary across regions and households in both cuisines.

What is Korean soup soy sauce, and can I replace it?

Korean soup soy sauce, called guk-ganjang, is a traditional soy sauce used for seasoning soups. It is generally saltier and lighter in color than many everyday soy sauces. If you cannot find it, substitute low-sodium soy sauce, starting with the same amount and tasting before adding extra salt. The broth may be darker and slightly sweeter, but the soup will still work.

How do I get long egg ribbons instead of little bits?

Beat the eggs until blended, keep the broth at a gentle simmer, and pour the egg slowly in a thin stream. Let it begin to set before making one gentle sweep through the pot. If you stir constantly, the egg breaks into smaller strands; if you pour too quickly or into a vigorous boil, it may clump or scatter. Both textures are normal, so choose the method you prefer.

Can I prepare the soup ahead of time?

You can make the broth and season it a day ahead, then refrigerate it covered. Reheat the broth until simmering and add freshly beaten eggs just before serving for the softest texture. If the soup is already assembled, refrigerate it promptly and reheat leftovers to 165°F (74°C); expect the egg to be firmer than when first cooked.

Why does my soup taste too salty?

The most common reason is a salty stock combined with soup soy sauce, fish sauce, and added salt. Next time, begin with low-sodium broth, omit the measured salt until the end, and season in small increments. If the finished soup is too salty, stir in a little hot water or unsalted broth and taste again. Adding more egg after cooking is not a reliable fix because it can overcook the soup.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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