Korean Beef and Radish Soup for a Cozy Dinner Bowl

Korean beef and radish soup, or sogogi-muguk, is a mild, savory Korean guk made with beef, Korean radish, garlic, and a clear broth. This version uses ground beef for a practical weeknight bowl, with tender pieces of radish and a little soup soy sauce for deep, balanced flavor; versions vary by household and region.

Ingredients

1 tablespoon (15 ml) toasted sesame oil
1 pound (450 g) lean ground beef
1 pound (450 g) Korean radish, peeled and cut into bite-size pieces about ½ inch (1.25 cm) thick; daikon is a good substitute, though it is often slightly sweeter and less peppery
2 tablespoons (30 ml) Korean soup soy sauce, called guk ganjang
3 cloves garlic, finely minced, about 1 tablespoon (15 g)
8 cups (1.9 L) water, or unsalted beef broth for a fuller-tasting soup
½ teaspoon (2.5 g) fine salt, plus more to taste; use less at first if your broth or soy sauce is salty
¼ teaspoon (0.5 g) ground black pepper
3 scallions, thinly sliced, about ½ cup (50 g)
4 cups (720 g) cooked short-grain rice, for serving; use rice prepared ahead if you want the stated recipe time

Instructions

Prepare the ingredients. Peel the radish and cut it into pieces of similar size so they soften evenly. Mince the garlic and slice the scallions, keeping the white and green parts together or separating them if you want to use some of the greens as a fresh garnish. Measure out the water, soy sauce, salt, and pepper before you start cooking.
Warm the pot. Set a large, heavy soup pot over medium heat and add the sesame oil. Let it warm for about 2 minutes; it should look fluid and fragrant, not smoky. If the oil begins to smoke, lower the heat before adding the beef.
Brown the ground beef safely. Add the beef and break it into small pieces with a sturdy spoon. Cook for about 8 minutes, stirring and scraping the bottom of the pot so the meat browns rather than sticking in one thick layer. Check the thickest clumps with a food thermometer: ground beef must reach the USDA FSIS safe minimum internal temperature of 160°F (71°C). If it has not reached that temperature, continue cooking and check again.
Season the meat and soften the radish. Stir in the soup soy sauce and garlic, then add the radish. Cook for 5 minutes, stirring often. The soy sauce should coat the beef and radish, while the radish begins to look a little translucent at the edges. Avoid letting the garlic scorch; if the pot is very dry, add a splash of the measured water.
Add liquid and simmer. Pour in the remaining water, scraping up any browned bits from the bottom of the pot. Stir in the salt and black pepper. Bring the soup to a gentle boil, then reduce the heat so it simmers steadily without bubbling hard. Partially cover the pot and simmer for 27 minutes, stirring once or twice. The radish is ready when a fork slides into a piece easily but the pieces still hold their shape.
Adjust the broth. Taste a spoonful after the simmer. Add a little more salt if the broth tastes flat, or a small splash of soup soy sauce if you want more savory depth. Add it gradually: guk ganjang is saltier and more concentrated than ordinary table soy sauce, and too much can make the clear broth overpowering.
Finish and serve. Stir in most of the sliced scallions and cook for 2 minutes. Ladle the hot soup into four bowls and scatter the remaining scallions over the top. Serve with cooked rice alongside or add a scoop directly to each bowl. The broth is meant to be sipped and spooned with the beef and radish, not reduced into a thick stew.

Tips

Use a gentle simmer. A hard boil can break the radish into ragged pieces and make the broth cloudy. Once the pot reaches a boil, lower the heat until you see small, occasional bubbles. If the radish needs more time, keep the heat low and check it every 3 to 5 minutes rather than turning up the burner.
Choose the right soy sauce. Korean soup soy sauce has a salty, clean flavor suited to broths. If you cannot find it, substitute regular soy sauce, starting with 1 tablespoon (15 ml) instead of 2, then taste before adding more. The soup will be darker and a little sweeter, so hold back on the measured salt until the end.
Cut the radish evenly. Similar-sized pieces cook at the same rate. Smaller pieces soften sooner and can crumble if simmered for the full time; larger pieces may need extra minutes. Daikon works well when Korean radish is unavailable, but taste the broth before seasoning because different radishes can vary in sweetness and intensity.
Keep the broth clear and balanced. Stir enough to prevent sticking, but avoid vigorous agitation during the simmer. If using salted beef broth instead of water, reduce or omit the salt at first. You can always season each bowl, but it is difficult to correct soup that has become too salty.

Serving Suggestions

Serve the soup piping hot in individual bowls with rice and small side dishes. Plain short-grain rice is a classic, simple match because it absorbs the savory broth; kimchi, seasoned spinach, cucumber salad, or roasted seaweed can add contrasting texture and flavor. These sides are optional, and the soup is filling enough to serve with rice alone.

For a more traditional table-style meal, place the pot on a heat-safe trivet and let everyone ladle portions into their own bowls. Put extra sliced scallions, black pepper, and a small dish of kimchi on the table so diners can season their serving as they like. If adding rice directly to the soup, do it in each bowl just before eating rather than mixing all the rice into the pot; this keeps the broth from becoming starchy as it sits.

Variations

Use sliced beef instead of ground beef. Thinly sliced brisket or another well-marbled beef cut gives the soup a different texture and a more distinct beef flavor. Cook the slices in the sesame oil until no longer pink, then check a representative piece with a food thermometer. Whole cuts of beef must reach the USDA FSIS safe minimum of 145°F (63°C) followed by a 3-minute rest. Continue with the recipe, adding the radish and seasonings as directed.

Make a richer broth. Replace some or all of the water with unsalted beef broth. Start with less salt and taste near the end, since prepared broth can be salty. For a lighter, cleaner finish, stick with water; for a deeper broth, use half water and half unsalted broth.

Add tofu or mushrooms. For a more substantial bowl, add 7 ounces (200 g) of firm tofu, cut into cubes, during the final 10 minutes of simmering. Sliced shiitake or cremini mushrooms can go in with the radish. Mushrooms bring an earthy flavor, while tofu makes the bowl more filling without changing the basic broth seasoning.

Bring in gentle heat. Add a pinch of Korean red pepper flakes, gochugaru, with the garlic, or serve chili flakes at the table. Gochugaru gives a warm, slightly fruity heat; it is not the same as very hot cayenne, so begin with ¼ teaspoon (about 0.5 g) and adjust to taste. This soup is usually mild, so the spice is optional rather than essential.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking. Store the soup in a covered, airtight container for 3 to 4 days. For best texture, store cooked rice separately; rice left in the soup continues absorbing broth and becomes soft. If you want to freeze portions, freeze the soup without rice in freezer-safe containers for up to 3 months. Leave room for expansion, thaw overnight in the refrigerator, and use the thawed soup within 3 to 4 days.

Reheat only the portion you plan to eat in a saucepan over medium heat, stirring occasionally until it is steaming throughout and reaches 165°F (74°C), the USDA FSIS safe temperature for reheated leftovers. Add a splash of water if the broth has reduced in storage. You can also microwave a serving in a covered microwave-safe bowl, stirring midway through heating and checking the temperature in more than one spot. Avoid repeatedly cooling and reheating the same pot.

Frequently Asked Questions

What is Korean soup soy sauce, and can I leave it out?
Korean soup soy sauce, or guk ganjang, is a salty, savory seasoning traditionally used to flavor Korean soups. If you cannot find it, use a smaller amount of regular soy sauce and adjust at the end; the broth will be darker and may taste slightly sweeter. Leaving it out entirely is possible, but you will need to season with salt and the soup will have less depth.

Can I make this soup ahead?
Yes. Cook the soup, cool it promptly, and refrigerate it in a covered container for up to 3 to 4 days. The radish will soften further as it sits, but the flavor remains pleasant. Keep rice separate and reheat each serving to 165°F (74°C) before eating.

Why is my radish still firm?
Radish size, age, and the strength of the simmer all affect cooking time. Cut especially thick pieces in half and simmer longer, checking every few minutes until a fork enters easily. Keep the pot at a gentle simmer; turning the heat up high may make the outside fall apart before the center is tender.

Can I use daikon instead of Korean radish?
Yes. Peel daikon and cut it into similarly sized pieces. It is a practical substitute, though it can be sweeter and less peppery than Korean radish. Taste the broth near the end and adjust the salt and soup soy sauce gradually.

Is this soup spicy?
No, the base recipe is mild. Black pepper adds a little warmth, while the garlic and sesame oil make the broth savory. Add gochugaru for more heat, or leave it out entirely; diners can also add chili flakes to their own bowls.

Can I make it without sesame oil?
Yes. Use a neutral cooking oil, such as canola or avocado oil, to brown the beef. Sesame oil contributes a distinctive toasted aroma, so the finished soup will taste less nutty without it. If you have toasted sesame oil, a few drops stirred in at the end can restore some of that aroma.

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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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