Rustic Siraegi-guk: Hearty Korean Dried Radish Greens Soup

🌍 Cuisine: Korean
🏷️ Category: Main Course
⏱️ Prep: 20 minutes
🍳 Cook: 45 minutes
👥 Serves: 4 servings

📝 About This Recipe

Siraegi-guk is the ultimate Korean soul food, a humble yet deeply nourishing soup made from sun-dried radish greens. This dish captures the essence of traditional Korean home cooking, utilizing fermentation and dehydration to create a complex, earthy flavor profile. With its savory Doenjang (soybean paste) base and silky, fiber-rich greens, it offers a comforting warmth that has sustained Korean families through cold winters for generations.

🥗 Ingredients

The Siraegi (Radish Greens)

  • 200 grams Dried Radish Greens (Siraegi) (pre-soaked and boiled until tender)
  • 3 tablespoons Korean Soybean Paste (Doenjang) (use a high-quality fermented paste)
  • 1 tablespoon Korean Chili Flakes (Gochugaru) (adjust for desired spice level)
  • 1.5 tablespoons Minced Garlic (freshly minced for best aroma)
  • 1 tablespoon Toasted Perilla Oil (adds a nutty depth)

The Golden Broth

  • 7 cups Rice Water (Ssaltteumul) (the starchy water from the second or third rinse of rice)
  • 10-12 pieces Large Dried Anchovies (guts removed to prevent bitterness)
  • 1 piece Dried Kelp (Dashima) (approx. 4x4 inches)
  • 1 tablespoon Korean Soup Soy Sauce (Guk-ganjang) (for seasoning and umami)

Vegetables and Finishing

  • 3 pieces Shiitake Mushrooms (thinly sliced)
  • 1 stalk Large Green Onion (sliced diagonally)
  • 1-2 pieces Cheongyang Chili Pepper (optional, sliced for a spicy kick)
  • 2 tablespoons Perilla Seeds Powder (Deul-kkae-garu) (optional, for a creamy finish)

👨‍🍳 Instructions

  1. 1

    Prepare the siraegi by squeezing out excess water from the pre-boiled greens. Cut them into bite-sized lengths (about 2-3 inches).

  2. 2

    In a large mixing bowl, combine the cut siraegi with the Doenjang, Gochugaru, minced garlic, and perilla oil. Massage the seasoning into the greens by hand until well coated; let it marinate for 10 minutes.

  3. 3

    In a large soup pot, add the rice water (ssaltteumul), dried anchovies, and kelp. The rice water acts as a natural thickener and removes the 'fishy' scent of the anchovies.

  4. 4

    Bring the pot to a boil over medium-high heat. Once boiling, remove the kelp immediately to prevent the broth from becoming slimy.

  5. 5

    Reduce the heat to medium and let the anchovies simmer for another 15 minutes. After 15 minutes, use a slotted spoon to remove and discard the anchovies.

  6. 6

    Add the marinated siraegi mixture into the boiling broth. Stir well to ensure the soybean paste dissolves completely.

  7. 7

    Add the sliced shiitake mushrooms to the pot. These will add another layer of earthy umami to the soup.

  8. 8

    Lower the heat to medium-low, cover with a lid, and simmer for 20-25 minutes. The longer it simmers, the softer the greens become and the deeper the flavor develops.

  9. 9

    Stir in the green onions and the optional Cheongyang chili peppers. Cook for another 3-5 minutes.

  10. 10

    If using perilla seeds powder for a richer, creamier texture, stir it in now until fully incorporated.

  11. 11

    Taste the broth. If it needs more salt, add the soup soy sauce (Guk-ganjang) one teaspoon at a time until the seasoning is perfect.

  12. 12

    Turn off the heat and let the soup sit for a minute before serving. This allows the flavors to settle beautifully.

💡 Chef's Tips

For the softest texture, peel the thin transparent skin off the radish green stems after boiling but before seasoning. Always use the 'second wash' of rice water; the first wash contains too much dust/impurities, while the second is clean and starchy. If you don't have dried anchovies, you can substitute with 1.5 tablespoons of fish sauce or high-quality vegetable bouillon. This soup tastes even better the next day as the Doenjang deeply penetrates the fiber of the greens. Avoid over-salting early; Doenjang is naturally salty and the broth concentrates as it simmers.

🍽️ Serving Suggestions

Serve steaming hot in a ceramic bowl alongside a bowl of freshly steamed purple rice (heukmi-bap). Pair with a side of well-fermented Baechu-kimchi (Napa cabbage kimchi) for a bright acidic contrast. Add a side of Gyeran-mari (Korean rolled omelet) for a complete, protein-balanced meal. A crisp side of seasoned bean sprouts (Sookju-namul) provides a lovely textural counterpoint to the soft soup. Enjoy with a glass of chilled Barley Tea (Bori-cha) to cleanse the palate between bites.