Korean seaweed soup, also called miyeok guk (미역국), is a light, nourishing soup eaten regularly in Korea and traditionally served on birthdays.

Does your culture have a specific food that is always served on birthdays? In many Chinese families, longevity noodles are common. In Korean culture, miyeok guk—seaweed soup—is one traditional birthday dish.
Below is a straightforward, nutritious miyeok guk recipe using ground beef. It’s easy enough for an everyday meal and suitable as a birthday soup when you want something comforting and meaningful.
Korean birthday soup
If you watch Korean dramas or have seen Korean family celebrations, you may have noticed miyeok guk served on birthdays. The reason goes back to a long-standing cultural association between seaweed soup and childbirth. Traditionally, new mothers are given seaweed soup to support recovery and breastfeeding. Because of that connection, families often eat miyeok guk on birthdays to honor the mother who gave them life.
If you want more background on the soup’s history and traditional uses, there are several reputable sources that discuss its cultural and nutritional significance.

Variations of Korean seaweed soup
Miyeok guk is commonly made with beef—sliced brisket or sirloin are popular choices—but there are many variations. Some families use pork, others add seafood like mussels or clams near coastal regions, and some versions are simple vegetarian broths. This version uses ground beef for convenience and lower cost while maintaining the familiar savory flavor.
Regardless of the protein you choose, the seaweed itself (miyeok) is the star of the soup. Use high-quality dried miyeok for best texture and flavor.

Use the right seaweed
Traditional miyeok guk is made with sea mustard, scientifically Undaria pinnatifida, commonly called wakame. It is sold dried in many Asian grocery stores and often comes in clumps or precut strips. After soaking, the dry miyeok becomes bright green and tender.
Avoid confusing miyeok with dried kelp (kombu) or thin toasted seaweed snacks. Kelp rehydrates into thicker pieces and is used for different soups or broths; seaweed snacks are toasted and salted and are not suitable for soups. Look for packaging labeled as miyeok or wakame when shopping for soup-grade seaweed.

Miyeok guk storage
Leftover miyeok guk keeps well. Store it in the refrigerator for up to one week or freeze portions for up to one month. To avoid repeated reheating—and to preserve texture and flavor—portion the soup into individual servings before freezing or refrigerating. Reheat only the portion you plan to eat.
Happy cooking!
Mei
If you make this recipe or other dishes inspired by it, share your photos on Instagram with the tag #twoplaidaprons or mention @two_plaid_aprons. We love seeing your creations! 🥰
📖 Recipe
Korean Seaweed Soup (Miyeok Guk)
Korean seaweed soup, aka miyeok guk (미역국), is a simple, light, nutritious soup that can be enjoyed every day and is traditionally served on birthdays.
Ingredients
- 0.7 ounce dried miyeok (Japanese wakame), about 21 g
- 1 pound ground beef (about 454 g); thinly sliced brisket or sirloin also work
- 3 cloves garlic, minced
- 2 tablespoons soy sauce (or use a soup soy sauce base; you can substitute 1 tablespoon fish sauce if preferred)
- 1 tablespoon toasted sesame oil
- 8 cups water
- Kosher salt, to taste
Instructions
- Place the dried miyeok in a bowl of water and let it soak for about 10 minutes, or until rehydrated. Drain and, if needed, cut into bite-size pieces.
- In a medium saucepan over medium-high heat, add the toasted sesame oil and the ground beef. Cook the beef until lightly browned, breaking it up as it cooks.
- Add the minced garlic and soy sauce to the beef and cook for another minute to develop the flavors.
- Add the water and the rehydrated seaweed, then bring the soup to a boil. Reduce the heat to a high simmer, cover, and let the soup simmer for 20–30 minutes.
- Taste and finish seasoning with salt as needed. Serve hot with steamed rice and banchan (side dishes) if desired.
Notes
- The most common version of miyeok guk uses sliced beef such as sirloin or brisket. This recipe uses ground beef for convenience and cost savings—swap in sliced beef if you prefer.
Recommended Equipment
- Saucepan
- Liquid measuring cup
- Measuring spoons
- Kitchen scale (optional)
Nutrition (per serving)
Approximate values: Calories 303 kcal | Carbohydrates 1 g | Protein 20 g | Fat 24 g | Sodium varies with seasoning. These are estimates and will change with ingredient brands and portion sizes.