Introduction

Muguk (무국) means radish soup, and its most popular form, sogogi muguk (beef and radish soup), is one of the most common everyday soups on Korean tables. The broth is wonderfully simple: beef sautéed in sesame oil, sweet Korean radish, water and a splash of soup soy sauce. In about 30 minutes you get a clear, savory, slightly sweet broth that goes with almost any meal. If you know the long-simmered galbitang broth, think of muguk as its quick weeknight cousin.

Muguk Broth at a Glance

What it is

• A light Korean soup base of beef and radish seasoned with soup soy sauce

Main ingredients

• Beef (brisket or round), Korean radish, gukganjang, garlic, sesame oil, green onion

Taste

• Clean, beefy, gently sweet from the radish and nutty from sesame oil

Main uses

• Sogogi muguk, spicy Gyeongsang-style beef soup, soup for rice (gukbap), ancestral rites tables

What is Muguk Broth Made Of?

The key is Korean radish (mu), which is denser and sweeter than daikon and releases a mellow sweetness as it cooks. Beef is first stir-fried in sesame oil with a little soup soy sauce, which browns it lightly and builds flavor before water goes in. Seasoning comes from gukganjang, the lighter-colored but saltier soup soy sauce explained in our ganjang guide. Common versions:

• Clear sogogi muguk: the everyday Seoul-style version.
• Spicy Gyeongsang-style: red with gochugaru, often with bean sprouts and green onion.
• Anchovy muguk: made with anchovy-kelp broth instead of beef for a lighter, seafood note.
• Tang-guk: a festive beef and radish soup often served at ancestral rites.

What Does Muguk Broth Taste Like?

Muguk broth is clean and comforting rather than heavy. The beef gives a savory base, the radish turns soft and translucent and adds a natural sweetness, and the soup soy sauce brings a deep, slightly fermented saltiness. A drizzle of sesame oil and fresh green onion finish it with a nutty, bright note. It is mild enough for children and often one of the first soups Korean kids learn to love.

Popular Korean Dishes That Use Muguk Broth

Sogogi Muguk

The classic clear beef and radish soup – recipe below.

Gyeongsang-style Sogogi Gukbap

A spicy red beef soup with radish, bean sprouts and lots of green onion, served with rice.

Tteokguk Base

Some families use a beef and radish broth as the base for tteokguk rice cake soup.

Mandu-guk

Drop a few dumplings into muguk for a quick, filling dumpling soup.

Easy Sogogi Muguk Recipe (Serves 4)

Ingredients

• 7 oz (200 g) beef brisket or round, thinly sliced into bite-size pieces
• 10 oz (300 g) Korean radish (about 1/4 of a large one), cut into thin 1-inch squares
• 1 tbsp sesame oil
• 2 tbsp gukganjang (soup soy sauce), divided
• 1 tbsp minced garlic
• 6 cups water
• 1 green onion, sliced; salt and black pepper to taste

Instructions

1. Pat the beef dry with paper towels to remove excess blood.
2. Heat the sesame oil in a pot over medium heat. Add the beef and 1 tbsp gukganjang and stir-fry for 2–3 minutes until the beef is no longer red.
3. Add the radish and stir-fry for 2 more minutes until the edges turn slightly translucent.
4. Pour in the water and bring to a boil. Skim off any foam, then reduce the heat and simmer for 20–25 minutes until the radish is soft and translucent.
5. Add the garlic and the remaining gukganjang, then season with salt and pepper. Simmer 2 more minutes, add green onion and serve with rice.

Tip: Season with soup soy sauce for flavor and color, and use salt for the rest of the saltiness – too much soy sauce darkens the broth. For the spicy Gyeongsang version, add 1 tbsp gochugaru with the radish and a handful of bean sprouts at the end.

Where to Buy Muguk Ingredients

United States

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Amazon
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H-Mart
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Canada

Search Korean soup soy sauce on Amazon.ca

Europe

Search Korean soup soy sauce on Amazon.co.uk

Korean radish is sold in the produce section of Korean grocery stores; daikon is a fine substitute but slightly more watery and less sweet.

How to Store Muguk Broth

Cool the soup, then refrigerate in a covered container for up to 3–4 days, reheating until boiling. It freezes well for about 2 months, though the radish softens further after thawing. Store a whole Korean radish wrapped in newspaper or paper towels in the vegetable drawer for 1–2 weeks.

Muguk Broth FAQ

What is the difference between gukganjang and regular soy sauce?

Gukganjang (soup soy sauce) is lighter in color but saltier and more fermented in flavor, so it seasons soups without darkening them. Regular soy sauce is darker and slightly sweeter.

Can I use daikon instead of Korean radish?

Yes. Daikon works well; it may cook a little faster and taste slightly less sweet.

What cut of beef is best for muguk?

Brisket gives the richest flavor; round or chuck are leaner options. Slice thinly so it cooks quickly and stays tender.

Is muguk spicy?

The classic clear version is not spicy at all. Gyeongsang-style beef soup adds gochugaru for heat.

Conclusion

Muguk broth proves that great Korean soup does not have to take all day: a little beef, sweet radish and soup soy sauce make a clean, comforting bowl in half an hour. Make it a weeknight staple and switch it up with dumplings or chili flakes. For a deeper, long-simmered beef soup, try our galbitang broth guide.