Authentic Eomuk-guk Recipe: Korean Street-Style Fish Cake Soup

Master Eomuk-guk (Korean Fish Cake Soup). Learn the secret to the ultimate clear anchovy-radish broth and how to skewer fish cakes just like the street vendors in Seoul.

 If you are wandering the freezing streets of Seoul in the dead of winter, salvation comes in the form of a steaming paper cup filled with golden broth and a wooden skewer of folded fish cakes.

This is Eomuk-guk (or Odeng-guk).

It is the quintessential Korean street food and the absolute mandatory side dish for spicy Tteokbokki. The beauty of Eomuk-guk lies in its simplicity. It is soothing, savory, and incredibly comforting.

But if you try to make it at home by just boiling fish cakes in plain water, it will taste like absolutely nothing. The magic of this soup is entirely in the Yuksu (the broth).

Today, I am giving you the Definitive Guide to making street-cart-style Eomuk-guk. I will teach you the exact ratio for the Anchovy-Kelp stock, why you must use Korean Radish, and the classic folding technique for the skewers.

Part 1: The Broth (Yuksu) Mastery

The foundation of Eomuk-guk—and about 70% of all Korean soups—is Myeolchi-Dashima Yuksu (Anchovy and Kelp Broth). To make a restaurant-quality broth, you need three key ingredients:

1. Dried Kelp (Dashima): This provides the baseline umami. But it comes with a strict rule: Do not boil it for more than 10 minutes. If you do, it releases a slimy texture and a bitter taste.

2. Large Dried Anchovies (Myeolchi): You must use the large ones meant for soup, not the tiny ones for stir-frying. And crucially, you must remove the black guts (the intestines) before boiling, or your soup will taste bitter and fishy.

3. Korean Radish (Mu): This is the secret to the sweet, refreshing finish of the soup. Korean radish is sweeter and firmer than a daikon. As it boils, it imparts a deep, sweet earthiness to the savory broth.

Part 2: The Fish Cake (Eomuk vs. Odeng)

You will often hear this dish called Odeng-guk. "Odeng" is a loanword from Japanese (Oden), while "Eomuk" is the native Korean word. They mean the same thing.

For the classic street-food look, you must buy Thin Rectangular Fish Cakes (Sajak Eomuk). They are usually sold frozen in Asian grocery stores.

• The Blanching Hack: Fried fish cakes are coated in a thin layer of old oil from the factory. To get a clean, clear soup, run the fish cakes under boiling water for 5 seconds before skewering them. This washes away the surface oil and stops the broth from getting greasy.

Part 3: The Skewer Technique

Street vendors don't just throw chopped fish cakes into a pot; they fold them onto long wooden skewers so they are easy to eat standing up.

1. Fold the rectangular fish cake in half lengthwise.

2. Thread it onto the skewer in an "S" shape (accordion style). This prevents it from falling off the stick when it swells up in the boiling broth.

The Recipe: Street-Cart Style Eomuk-guk

Prep time: 15 minutes | Cook time: 25 minutes | Servings: 3-4

Ingredients

The Foundation Broth (Yuksu):

• 8 cups of water.

• 10 Large Dried Anchovies (heads on, black guts removed).

• 1 piece Dried Kelp (Dashima), about 4x4 inches.

• 1/2 lb Korean Radish (Mu), peeled and cut into thick bite-sized squares.

• 1/2 Onion, unpeeled.

• 2 Green Onions (use the white roots for the broth, save the green tops for garnish).

The Main Event:

• 1 package (about 10 oz) Thin Rectangular Korean Fish Cakes.

• Long wooden skewers.

The Seasoning:

• 1 tbsp Soup Soy Sauce (Guk-Ganjang). Do not use regular soy sauce, or the broth will turn dark!

• 1 tbsp Rice Wine (Mirin).

• 1 tsp Minced Garlic.

• 1/2 tsp Salt (adjust to taste).

• Pinch of Black Pepper.

The Dipping Sauce:

• 2 tbsp Soy Sauce.

• 1 tbsp Water.

• 1 tsp Vinegar.

• 1/2 tsp Gochugaru (Chili Flakes).

• 1/2 tsp Sesame Seeds.

• 1 tsp Minced Green Onion or Jalapeno.

Step-by-Step Instructions

Phase 1: The Golden Broth

1. Clean Anchovies: Remove the heads and the black guts from the anchovies. (Keep the heads, they add flavor!).

2. In a large pot, combine the Water, Anchovies, Kelp, Radish, Onion, and Green Onion Roots.

3. Bring to a boil over Medium-High heat.

4. The 10-Minute Rule: Once it hits a rolling boil, set a timer for 10 minutes. When the timer goes off, remove the Kelp and discard it.

5. Lower the heat to Medium-Low and simmer for another 15 minutes to fully soften the radish and extract the anchovy flavor.

6. Strain: Pour the broth through a fine-mesh strainer. Discard the anchovies and onions. Keep the Radish chunks and return them to the clear broth.

Phase 2: Skewer Prep

1. While the broth is simmering, prep the fish cakes.

2. Rinse them quickly under hot water to remove surface oil.

3. Fold each rectangular sheet in half lengthwise. Thread them onto wooden skewers in an accordion/zigzag pattern.

Phase 3: The Final Boil

1. Return the clear, golden broth (and radishes) to the stove.

2. Add the Soup Soy Sauce, Mirin, Minced Garlic, Salt, and Pepper.

3. Bring to a gentle simmer.

4. Add the Fish Cake Skewerstoo the pot.

5. Boil for 3 to 5 minutes. Do not overboil! If they boil for too long, they will swell up, lose their chewy texture, and turn into mush.

Phase 4: Serve

1. Mix all the Dipping Sauce ingredients in a small bowl.

2. Serve the soup piping hot in bowls. Garnish generously with chopped Green Onions.

3. Eat the fish cake right off the skewer, dipping it into the soy sauce mixture.

Pro-Tips: How to Eat It Like a Local

1. The Paper Cup: If you really want to feel like you are at a Korean street cart, serve the broth in a sturdy paper cup and drink it directly from the rim.

2. The Tteokbokki Rule: If you make Tteokbokki, make this soup! Alternate bites: one spicy, chewy rice cake, followed by a cooling sip of the savory fish cake broth.

3. Add Some Heat: If you like spicy food, toss one or two sliced Cheongyang peppers (or Jalapeños) into the broth during Phase 3. It gives the soup a sharp, fiery kick that warms you to the bone.

Troubleshooting Guide

Problem: The soup tastes fishy/bitter.

• Cause: You forgot to remove the black intestines from the dried anchovies, or you boiled the kelp for too long.

• Fix: Always gut your anchovies! To mask a bitter broth now, add more salt and a splash of mirin.

Problem: The fish cakes fell off the stick.

• Cause: You over-boiled them, causing them to expand and lose their structural integrity.

• Fix: Fish cakes are already fully cooked from the factory. They only need 3-5 minutes in the hot broth to warm through and absorb the flavor.

Problem: The broth is too dark.

• Cause: You used regular Soy Sauce (Jin-Ganjang) instead of Soup Soy Sauce (Guk-Ganjang).

• Fix: Soup Soy Sauce is lighter in color but saltier. If you only have regular soy sauce, use less of it and make up the difference with salt to keep the broth light and clear.