Gamjatang Recipe: Korean Pork Bone Soup

Gamjatang (감자탕, pork bone soup) is a Korean soup built on pork neck bones and vertebrae, simmered for 2-3 hours until the meat falls from the bone and the collagen-rich broth turns thick and glossy. The potatoes (gamja) give it the name but not the soul — the pork bones and the gochugaru-doenjang-perilla seasoning do that work.

It's a late-night dish in Korea — sold at 24-hour restaurants, often after drinking. The high heat, high protein, and deep savory flavor makes it an effective recovery meal. It's also one of the best winter soups in the Korean canon for anyone not in recovery.

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Why Pork Neck Bones

Neck bones and spine bones (chuk) have three qualities ideal for long-braised soups: connective tissue that converts to gelatin (richness), marrow (fat and flavor), and meat that falls away from the bone (texture). They're also inexpensive. After 2+ hours of simmering, the bone releases everything it has into the broth, which becomes thick and unctuous without added thickeners.

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Ingredients (serves 4)

• 1.5 kg (3.3 lbs) pork neck bones
• 2 large potatoes (russet or yellow), cut into large chunks
• ½ small head napa cabbage, cut into large pieces
• 1 bunch perilla leaves (kkaennip) or spinach
• 4 scallions, cut into 5cm pieces

Seasoning paste:

• 3 tablespoons gochugaru
• 2 tablespoons doenjang (fermented soybean paste)
• 1 tablespoon gochujang
• 3 tablespoons soy sauce
• 1 tablespoon fish sauce
• 6 cloves garlic, minced
• 1 tablespoon ginger, minced
• 1 tablespoon sesame oil
• 1 teaspoon black pepper

Aromatics for parboiling:

• 1 tablespoon doenjang
• 1 tablespoon soju or rice wine
• 4 cloves garlic
• 1 teaspoon black pepper

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Step 1: Parboil and Clean

Soak pork neck bones in cold water for 30-60 minutes. Drain. The soaking draws out blood, which would make the broth murky and gamey.

Place bones in a large pot. Cover with water. Add doenjang, soju, garlic, and black pepper. Bring to a full boil and cook 10-15 minutes. Drain completely. Rinse each bone under cold running water, removing any gray foam, loose bits, and blood. This step — often skipped in Western recipes — is essential for a clean-tasting broth.

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Step 2: Simmer the Bones

Return cleaned bones to the pot. Add fresh water to cover (about 2-2.5 liters). Bring to a boil, then reduce to a gentle simmer. Simmer partially covered for 90 minutes. The broth will become opaque white and slightly thick.

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Step 3: Season

Combine all seasoning paste ingredients in a bowl. After 90 minutes of simmering, add the seasoning paste to the broth. Stir to combine. Add potatoes.

Continue simmering 30-40 minutes until the potatoes are completely tender and the meat is falling from the bones.

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Step 4: Add Vegetables

Add the napa cabbage and scallions. Simmer 5-8 minutes until wilted but not completely soft. Add perilla leaves at the very end (30 seconds before serving) — they should stay slightly fresh, not cooked down.

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Final Seasoning

Taste. The broth should be intensely savory, deeply spicy, and slightly rich from the collagen. Adjust with soy sauce for salt, a little more gochugaru for heat, or a small piece of additional doenjang dissolved in the broth for deeper fermented depth.

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How to Eat

Gamjatang is served communally in a large stone pot (dolsot) or earthenware pot kept at simmer on a table burner. Eat from the communal pot with chopsticks and a soup spoon.

The pork meat is eaten directly from the bone — grasping the bone and pulling the meat off with chopsticks or a spoon. This is how the dish is eaten; using a fork and knife is unusual.

With rice: Steamed rice on the side, eaten separately or added to the remaining broth at the end to make eutbap (rice in the leftover soup).

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The 24-Hour Restaurant Version

Many gamjatang restaurants in Korea operate 24 hours. They maintain a continuous pot, adding fresh bones and broth as old ones are depleted. The perpetually simmering broth develops flavor over days that no home cook can replicate in a single 3-hour session. The commercial version is usually more intensely flavored and slightly richer than home-cooked — and often spicier.