Kongnamul-guk (Bean Sprout Anchovy Soup)
Quick answer
Kongnamul-guk is a clear Korean soup built on bean sprouts, water, soup soy sauce, and garlic, and its central technique is boiling the sprouts with the lid firmly closed...
What makes this special
- Kongnamul-guk prepares a clear broth from bean sprouts and anchovy stock with soup soy sauce.
- Lid kept closed for 7 minutes; the traditional rule to control beany odor
- From prep to finish in 15 minutes; one of the fastest Korean soups
Key ingredients
Core cooking flow
- 1 Rinse 200g bean sprouts in cold water, gently swishing to remove loose skins, then drain well.
- 2 Pour 700ml water into a pot and bring it to a strong boil over high heat.
- 3 When the water is boiling hard, add the bean sprouts and cover the pot immediately.
Kongnamul-guk is a clear Korean soup built on bean sprouts, water, soup soy sauce, and garlic, and its central technique is boiling the sprouts with the lid firmly closed for seven minutes. The reason behind the closed lid is a long-standing Korean kitchen belief: the compounds responsible for the raw, beany smell in soybean sprouts are volatile, and if the lid is left open, they do not escape with the steam but instead condense back into the pot. Whether the chemistry fully supports this, keeping the lid closed has been the standard method for generations and consistently produces a clean-tasting broth. Green onion goes in at the very end to keep its bright, mild bite without overcooking. Trimming the fine root tails from each sprout improves the texture and presentation, though it does not change the flavor and is often skipped on weekdays. Adding chili flakes and a cracked egg transforms the soup into a spicy, restorative hangover version, and a handful of clams deepens the broth with extra umami. From start to finish the soup takes about fifteen minutes, which makes it one of the fastest soups in the Korean repertoire, and the directness of its flavor -- clean, cool, and vegetal -- is exactly what makes it worth returning to.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Prep
Rinse 200g bean sprouts in cold water, gently swishing to remove loose skins, then drain well.
Trim the fine tails only if you want a neater texture, and slice the green onion on a bias.
- 2Control
Pour 700ml water into a pot and bring it to a strong boil over high heat.
Do not add the seasonings before the water boils, because early seasoning can make this clear soup taste heavier and look cloudy.
- 3Control
When the water is boiling hard, add the bean sprouts and cover the pot immediately.
Keep the heat high enough for a steady boil and cook for 7 minutes without opening the lid at any point.
- 4Control
After 7 minutes, open the lid and lower the heat to medium.
Add 1 tablespoon soup soy sauce and 1 teaspoon minced garlic, then simmer for 3 minutes so the broth seasons without overcooking the sprouts.
- 5Season
Taste the broth and adjust with up to 0.5 teaspoon salt, adding it gradually because soup soy sauce already brings salinity.
For a spicy version, stir in 0.5 teaspoon gochugaru until it disperses evenly.
- 6Finish
Add the sliced green onion and cook for just 1 more minute, keeping its color and mild bite.
Serve immediately when the sprouts are crisp-tender and the broth tastes clean, clear, and lightly seasoned.
After the steps
Pick a recipe that fits this dish.
Continue with shared ingredients, meal pairings, or a similar method.
Recipes That Go Well With This
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Korean Bean Sprout Kimchi Soup
The preparation of this traditional Korean soup follows a two-part process designed to build layers of flavor by stacking different ingredients over time. The foundation begins with aged kimchi and a substantial amount of the fermented liquid from the kimchi jar. These ingredients are combined with anchovy stock and allowed to simmer together for a duration of eight minutes. This initial cooking period is essential for the broth to fully absorb the acidic depth of the fermented vegetables. As the mixture simmers, the liquid transforms into a deep shade of brick red, signaling that the base has reached the correct concentration for the next set of ingredients. After the initial simmering period is complete, bean sprouts are introduced to the pot along with gochugaru, minced garlic, and soup soy sauce. It is important to leave the lid off the pot for the remaining five minutes of the cooking process. Leaving the soup uncovered during this specific stage facilitates the removal of the raw scent that can sometimes be associated with fresh bean sprouts. Furthermore, this method prevents the liquid from being diluted by trapped steam, which allows the various flavors to concentrate and sharpen rather than becoming softened. In the final minute of preparation, sliced green onion is incorporated into the broth. This addition provides a fresh herbal element that lifts the profile of the soup and balances the heavier fermented notes of the kimchi base. If the kimchi used in the recipe is not sufficiently fermented, the resulting broth may lack the necessary sharpness. In such cases, adding half a teaspoon of vinegar can enhance the acidity to the desired level without changing the fundamental character of the broth. The combination of the deep flavors from the kimchi and the natural crispness of the bean sprouts results in a liquid that is both warming and restoring. Because of these properties, this dish has a long history as a reliable remedy for hangovers in Korea, and it remains a common staple for families to consume during the cold weather seasons.
Korean Dried Pollock Hangover Soup
Buk-eo Haejang-guk is a traditional Korean soup frequently consumed in the morning to soothe the digestive system. It relies on dried pollock strips as the primary ingredient. Before beginning the cooking process, the dried pollock requires a brief soaking period in cold water lasting approximately five minutes. This step is necessary to soften the texture while ensuring that the inherent flavors of the fish are not washed away. Keeping the soaking time to a strict minimum prevents the fish from becoming overly soft or weakening the resulting broth. The prepared fish is first stir-fried in sesame oil. This initial sautéing step functions to neutralize any lingering fishy aromas and establishes a toasted, nutty foundation for the liquid. Once the fish is fragrant, soybean sprouts and minced garlic are added to the pot to simmer for fifteen minutes. The addition of soybean sprouts introduces a clean and refreshing quality to the soup. For seasoning, soup soy sauce is used to achieve a clear and balanced flavor profile. Just before the pot is removed from the heat, a thin stream of whisked egg is poured into the simmering liquid along with sliced green onions. People preferring a more intense savory profile can mix a small spoonful of fermented soybean paste, known as doenjang, into the base to deepen the flavor. The final result is a mild soup that has long been used as a restorative morning-after remedy in Korea.
Korean Kimchi Acorn Jelly Rice Bowl
Acorn jelly (dotorimuk) is sliced into strips, placed over rice, and drenched in a chilled broth made from kimchi juice, cold water, and a touch of sugar. The jelly's slippery, bouncy texture contrasts with the crunch of chopped kimchi, while the tangy broth refreshes the palate with every spoonful. A light toss of sesame oil on the rice provides a nutty base, and roasted seaweed flakes add an ocean-like finish. Adding ice cubes makes it even more bracing, a distinctly Korean way to beat summer heat with a cold, brothy rice bowl. If the kimchi is too tart, a small addition of sugar rounds the flavor into balance.
Korean Bean Sprout Dried Pollock Soup
Kongnamul-hwangtae-guk pairs dried pollock strips with soybean sprouts in a clear broth that is widely eaten as a morning-after remedy. The pollock is toasted briefly in sesame oil to coax out a nutty, savory aroma before radish slices and water are added for ten minutes of simmering, which forms the foundational stock. Rinsing the pollock quickly in cold water rather than soaking it for a long time keeps the strands pleasantly chewy rather than soft and falling apart. Bean sprouts and minced garlic are added uncovered for five more minutes: leaving the lid off is essential, as the open steam carry away the raw beany smell while preserving the sprouts' characteristic crunch. Soup soy sauce and a pinch of salt finish the seasoning, and sliced green onion goes on just before serving. The broth turns a milky, pale white as the pollock proteins leach into the liquid, which is the visual marker of a properly cooked bowl.
Serve with this
Korean Perilla Soybean Sprout Namul
Kongnamul, soybean sprouts, are among the most consumed vegetables in Korea, and this perilla-dressed version adds a nutty, full-bodied depth that the plain sesame oil variety lacks. The sprouts are steamed with the lid sealed for five minutes, which drives off the raw bean smell while keeping the heads firm and crunchy. Tossed with perilla powder, soup soy sauce, garlic, and sesame oil while still warm, the powder absorbs the moisture and dissolves into a pale coating that makes each sprout feel creamy on the tongue. Chopped scallion contributes a sharp, grassy contrast that balances the richness, and resting the finished dish for five minutes before serving lets the seasoning penetrate evenly so the flavor comes together more completely.
Korean Stuffed Cucumber Kimchi
Oi sobagi is a Korean stuffed cucumber kimchi made by salting whole cucumbers, cutting them crosswise to within a centimeter of the base to create four attached wedges, and packing the cavity with a filling of garlic chives, onion, gochugaru, anchovy fish sauce, and plum syrup. When bitten, the cucumber's cool moisture meets the spicy, fragrant stuffing inside, releasing a burst of layered juice, and the firm crunch of the flesh contrasts cleanly with the softer chive filling. Salting for exactly thirty minutes is the critical window -- less time leaves the cucumber too firm to absorb the seasoning properly, while longer breaks down the cell structure and causes the flesh to go limp, which makes the stuffed pieces fall apart when cut. The filling ingredients should be mixed quickly without over-handling, because overworking the chives releases water and dilutes the seasoning. After stuffing, the cucumbers sit at room temperature for four hours to begin fermentation, then move to the refrigerator, where lactic acid development continues slowly overnight. By the second day the flavor is brighter and more complex with a distinct tangy edge. Cutting the portions just before serving, rather than in advance, keeps the flavorful interior juices from running out. Cucumbers of uniform thickness salt most evenly, and if substituting sugar for plum syrup, use a smaller quantity to keep the sweetness in check.
Korean Burdock Matchstick Pancake
Burdock root, julienned into thin matchstick strips and pan-fried with onion and cheongyang chili, is a jeon with texture as its main argument. The combination of Korean pancake mix and tempura flour in the batter produces a result that is crispier than standard jeon, particularly at the edges where the thin strips of burdock protrude from the batter and catch the heat. Burdock has an earthy, faintly bitter flavor that holds up in the pan, and the onion provides sweetness alongside it. Cheongyang chili cuts through with a slow-building, lingering heat. Cold water keeps the batter loose and inhibits gluten development, so the finished jeon stays light rather than dense. Hot from the pan, the edges shatter; cooled, they turn chewy.
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Korean Dried Pollock Bean Sprout Soup Rice
Hwangtae kongnamul gukbap is a hangover-recovery rice soup built on a broth of stir-fried dried pollock strips, bean sprouts, and radish. The dried pollock is soaked briefly in water to restore some moisture, then stir-fried in sesame oil. The frying step drives off any fishiness and releases a deep, toasted aroma that becomes the flavor backbone of the entire broth. Without this step, the soup tastes thin and vaguely fishy; with it, the broth has a satisfying nuttiness even before any other ingredients are added. Sliced radish goes into the water next and simmers until it softens and releases its natural sweetness into the liquid. Bean sprouts go in after the radish, and here a small detail matters: the lid stays on throughout the bean sprout cooking. If the lid is removed while the sprouts cook, their distinctive raw smell rises with the steam and lingers in the broth. Keeping the lid sealed lets the sprouts cook in their own steam and the smell dissipates harmlessly. Soup soy sauce seasons the broth with a clean saltiness that does not darken the liquid as much as regular soy sauce would, keeping the broth pale and clear-looking. Sliced green onion goes in at the very end for a fresh accent. The soup is poured over a bowl of rice to serve.
Korean Bean Sprout Soup with Rice
Kongnamul gukbap is a Jeonju-style soup-and-rice dish built around bean sprouts simmered in anchovy broth with the lid kept off throughout cooking. Leaving the pot uncovered for the five to six minute cooking time allows steam to carry off the beany odor while keeping the sprouts snappy and firm rather than limp. Soup soy sauce seasons the broth, sliced green onion is added for freshness, and a whole egg is poached directly in the simmering liquid until the yolk is just set. Hot broth is then poured over a bowl of cooked rice, and shredded dried seaweed and a pinch of red pepper flakes are scattered on top to finish. The refreshing, clean flavor that bean sprouts bring to the soup pairs naturally with the deep savoriness of anchovy stock, and simmering a piece of radish alongside clarifies the broth and gives it additional sweetness. Cooking uncovered is a traditional rule of thumb that Korean cooks have followed for generations. This dish has long been associated with Jeonju and is widely sought out as a restorative meal after a late night.
Haejangguk (Korean Pork Bone Hangover Soup)
Haejangguk is Korea's iconic hangover soup, a thick and fiery bowl built to restore the body after a long night of drinking. The base is a pork spine broth simmered for several hours until it turns milky, opaque, and deeply savory, carrying a weight that sits in the stomach rather than passing through it. Outer napa cabbage leaves called ugeoji are seasoned with doenjang and garlic before being added to the broth, contributing fibrous, chewy texture alongside the soup's fermented depth. Congealed blood, known as seonji, is a traditional inclusion cut into thick blocks: iron-dense and high in protein, it provides serious nutritional restoration and a visually striking dark contrast in the stone pot. Gochugaru delivers heat strong enough to draw sweat to the forehead, and Koreans have long held that this intensity helps flush toxins from the body and clear the mind after a night of drinking. The finished soup arrives still bubbling in its dolsot, and the first few spoonfuls tend to produce an involuntary exhale of relief. Dedicated haejangguk restaurants open before dawn to serve construction workers and late-night revelers, and the dish has occupied a fixed position in Korean culinary and drinking culture for centuries.
Tips
Nutrition (per serving)
Variations
Bean Sprout Kimchi Soup
Bean sprouts and kimchi create a tangy, lightly spicy soup. It is crisp, lively, and refreshing on the palate.
Cabbage Bean Sprout Soup
Refreshing and light Korean soup with napa cabbage and bean sprouts, features clean, hangover-clearing qualities.
Dried Radish Greens and Bean Sprout Soup
Clear and savory soup with dried radish greens and bean sprouts - a great hangover remedy.