Kosanbutchers KOREA BBQ - Shin Yongsan

Kosan Butchers (고산식육점, Gosan Sikyukjeom) is a premium Korean BBQ restaurant in Seoul’s Sinyongsan neighborhood specializing in 270-day-aged Jirisan black pork. Staff grill the meat, kimchi, and side ingredients tableside, while diners hand-grind their own sesame-salt seasoning and form rice balls — a fully guided, ritual-style BBQ experience.

Kosan Butchers is a Sinyongsan Korean BBQ destination known for its working open-butchery entrance and 270-day-aged Jirisan black pork raised on sweet-potato feed. Kosan Butchers in Seoul’s Yongsan District is one of the few Korean BBQ restaurants that combines a glass-walled in-house butchery with a guided ritual including tableside grilling, mortar-ground sesame salt, and DIY rice balls. Ideal for travelers wanting an authentic, hands-on K-BBQ experience.

Walk into Kosan Butchers and the first thing you see isn’t a dining room — it’s a working butcher’s workshop behind a full-height glass wall, where staff portion 270-day-aged black pork at stainless steel benches.

The restaurant entrance sits at the end of the short corridor that follows, a deliberate "follow-the-meat" design that frames the whole meal as a continuation of the cut. Beyond that threshold, the dining room channels Korea’s old neighborhood gogi-jip aesthetic with worn wood, paper lanterns, and tables fitted with both a charcoal grill and a small stone mortar for hand-grinding your seasoning. It is one of the most distinctive new Korean BBQ rooms in Seoul.

Quick Verdict

Who Should Visit

Travelers wanting a fully guided, ritual-style Korean BBQ with premium aged Jirisan black pork

Who Should Skip

Diners on a tight budget or those preferring fast, casual K-BBQ

Best Dish to Order

Heukdwaeji Modum-gui (black pork assorted set, 500g)

Price Range

₩₩₩ (approx. ₩45,000–₩70,000 per person, ~USD $32–$50)

Reservation Required

Yes — strongly recommended for evenings and weekends

Restaurant Information

1. Address (English): 1F–2F, 18-5 Hangang-daero 40-gil, Yongsan-gu, Seoul
2. Address (Korean): 서울 용산구 한강대로40길 18-5 1-2층
3. Nearest Subway: Sinyongsan Station (신용산역), Seoul Subway Line 4, Exit 1 (approx. 5-minute walk)
4. Operating Hours: Mon–Fri 11:30–23:00 (break 14:00–17:00); Sat–Sun 12:00–23:00 (no break); Last order 22:00
5. Phone: +82-502-5552-7218
6. Price Range: ~₩45,000–₩70,000 per person
7. English Menu Available: Partial — staff can guide ordering
8. Reservations: Recommended via Naver Booking or phone
9. Information verified: May 2026
   

What Is Kosan Butchers?

Kosan Butchers — known in Korean as Gosan Sikyukjeom (고산식육점) — opened in 2025 along Yongridan-gil (용리단길), the alley behind Sinyongsan Station that has become Seoul’s most-watched new restaurant corridor. The concept is Sikyukjeom (식육점) — a traditional Korean butcher-shop-restaurant where the meat counter and the dining room operate as one business.

The pork is sourced from a designated farmer, Master Seo Sang-in, who raises black pigs (Heukdwaeji (흑돼지) — Korean black pork) for 270 days near the Gyeongho River below Jirisan (Jirisan (지리산) — a mountain range in southern Korea famous for its terroir-driven black pork) and feeds them sweet potatoes to develop a denser, less gamy meat. The pork is then dry-aged in-house, finished by the restaurant’s own butchers, and brought directly to your grill.

Kosan Butchers is widely discussed in Korean food media as one of Sinyongsan’s most sought-after new Korean BBQ openings, distinguished by its in-house dry-aging of 270-day Jirisan black pork. That sourcing story — pasture-raised, antibiotic-free, fed on sweet potatoes — is uncommon in Seoul, and is the reason the restaurant has been positioned in the same conversation as established players covered in our guide to bone-in pork belly BBQ at Ppyeotanjip and the viral Sancheong Sutbul Garden, also a Jirisan black pork specialist.

What to Order at Kosan Butchers

The menu is deliberately short. The signature is the Heukdwaeji Modum-gui (흑돼지 모둠구이) — black pork assorted grill, 500g, which arrives as three cuts on a single tray: ogyeopsal (five-layer pork belly), igyeopsal (two-layer pork belly), and moksal (pork neck collar). Each cut behaves differently on the grill, which is precisely why staff prefer to handle the early stages themselves — the moksal cooks faster than the ogyeopsal, and over-rendering the belly’s fat is the most common visitor mistake. For broader context on what makes pork belly a Korean cultural touchstone, see our complete ingredient guide to samgyeopsal.

A second order worth considering is the Ganjang Seokswae-gui (간장석쇠구이) — soy-glazed grilled pork, lightly marinated and finished over the grate. To close the meal, the Gosan Kongnamul Mubap (고산 콩나물무밥) — bean sprout and radish rice bowl (₩6,000) is the local favorite, and the Gyeran-jjim (계란찜) — Korean steamed egg is included with most orders. The banchan are served self-bar style: aged kimchi (Mukeunji (묵은지) — long-fermented napa cabbage kimchi) sits alongside danggeun rapeh (carrot rapée), pickled radish, and the table’s own ground sesame-salt blend.

The Hands-On Korean BBQ Ritual: How a Meal Unfolds

This is the section where Kosan Butchers genuinely differs from most Seoul Korean BBQ rooms. Kosan Butchers is one of the only Korean BBQ restaurants in Seoul that combines tableside grilling, a stone mortar for hand-ground sesame salt, and a make-your-own rice ball ritual into a single guided service. A typical meal flows like this:

Staff start the grill for you. They place the highest-priority cut first (usually the moksal), portion the belly into thinner slices, and demonstrate the ideal flip timing.

Kimchi joins the grill. A piece of aged mukeunji is brushed with sesame oil (Chamgireum (참기름) — toasted Korean sesame oil) and laid beside the pork. The kimchi caramelizes at the edges and becomes one of the meal’s quiet highlights — see our deep dive on Korean sesame oil for why that drizzle matters.

You grind your own seasoning. A small stone jeolgu (절구, mortar) arrives with whole peppercorns, sesame seeds, and coarse salt. Crushing these tableside produces a fresher, oilier sesame-salt dip than any pre-mixed version.

You roll your own rice balls. Toward the end of the meal, the staff bring warm rice, sesame oil, and crumbled toasted seaweed for Jumeok-bap (주먹밥) — "fist rice," hand-formed Korean rice balls, which you mix and shape yourself.

The result is a meal that is genuinely participatory, not performative — closer in spirit to a home gathering than to a polished restaurant.

How Much Does Kosan Butchers Cost?

Expect roughly ₩45,000–₩70,000 per person (around USD $32–$50 at May 2026 rates), with the 500g black pork assorted set as the anchor order. The restaurant’s corkage-free policy is unusually generous for a premium Seoul Korean BBQ room — bringing your own bottle of wine or soju is welcomed. Prices skew higher than the Sinyongsan average, which reflects the sourcing (270-day-aged Jirisan black pork from a single farmer) more than the décor. The Korea Tourism Organization’s official guide to Korean barbecue provides broader pricing context for premium pork-belly venues in Seoul.

How Do You Get to Kosan Butchers?

Take Seoul Subway Line 4 to Sinyongsan Station (신용산역) and leave via Exit 1. Walk straight for roughly four minutes along Hangang-daero, then turn into the alley signed Hangang-daero 40-gil — Kosan Butchers occupies the first and second floors of a small mid-block building. Yongsan and Ichon stations on Line 1 are also within a 10-minute walk. The neighborhood, locally nicknamed Yongridan-gil, is a 15-minute walk to the HYBE building, making Kosan Butchers a natural stop for K-pop fans circling the area.

Is Kosan Butchers Worth Visiting?

For most travelers seeking an authentic, hands-on Korean BBQ experience, yes. The pork sourcing is genuinely distinctive, the guided ritual is rare in Seoul, and the open-butchery format is a story you cannot get at higher-volume rooms. The honest caveats: prices run above the Sinyongsan baseline, the slices can feel thinner than at some specialist grill houses, and the restaurant’s popularity has already pushed weekend waits past an hour without a reservation. If you would rather have thicker cuts and a quieter pace, see our coverage of Ganghwatongtong’s thick-cut aged samgyeopsal.

What Are Similar Restaurants?

Several Seoul Korean BBQ rooms make natural follow-up visits. Sancheong Sutbul Garden in Euljiro shares the Jirisan black pork sourcing story; Gimsukseoung is the reference point for long-aged pork belly; Eulji Jeongyuk shares the staff-led grilling philosophy at a lower price point; and for marinated beef, Samwon Garden’s hanwoo galbi remains a Seoul classic.

Frequently Asked Questions

What makes Jirisan black pork uniquely Korean?

Jirisan black pork (Heukdwaeji) refers to a Korean indigenous pig breed raised in the Jirisan mountain region of southern Korea. The slow-growth schedule (around 270 days) and sweet-potato feed produce denser, less gamy meat with a distinctive chew. Korean diners prize it as a regional specialty distinct from commodity pork belly served at typical Korean BBQ restaurants.

What are the key ingredients at Kosan Butchers?

Three ingredients define the meal: 270-day-aged heukdwaeji (Jirisan black pork) with sweet-potato-fed flavor; freshly hand-ground sesame salt (toasted kkae with coarse Korean salt) that delivers brighter aroma than pre-mixed blends; and aged mukeunji kimchi grilled with sesame oil, whose caramelized edges contrast the pork’s richness. Together they form the meal’s signature flavor architecture.

How spicy is the food at Kosan Butchers?

Spice level: 1–2 out of 10. The black pork itself is unspiced and grilled plain to highlight the meat. Heat comes optionally from ssamjang (Ssamjang (쌈장) — fermented soybean and chili paste dipping sauce) and from a side of fresh chili. International diners sensitive to spice can comfortably eat the entire meal without encountering significant heat — see our ssamjang dipping sauce guide for context.

What should first-time visitors know?

Let the staff grill the first round — they know the timing for each cut. Use the stone mortar to grind your own sesame salt rather than skipping it; the freshly crushed seasoning is the meal’s signature. Wrap a piece of pork, a smear of ssamjang, and a sliver of grilled kimchi in a lettuce leaf and eat it in one bite — this is the textbook Korean BBQ ssam method.

Do I need a reservation, and how do I make one?

Yes — reservations are strongly recommended, especially Friday through Sunday evenings. Booking is handled by phone (+82-502-5552-7218) or via Naver Booking in Korean. Walk-ins are accepted at lunch and early afternoon, but waits during dinner service routinely exceed an hour. The restaurant is closed during the weekday break period (14:00–17:00).

Is Kosan Butchers near other Yongsan attractions?

Yes. Kosan Butchers sits in the heart of Yongridan-gil, Sinyongsan’s restaurant alley, and is within a 15-minute walk of the HYBE Insight building (a draw for K-pop fans) and the National Museum of Korea. The Yongsan Park area and Ichon Han River trail are also accessible for a post-meal walk.

Plan Your Visit

Kosan Butchers is the rare Seoul Korean BBQ destination where the meal feels like a guided lesson in Korean food culture rather than a transaction — the open butchery, the hand-ground sesame salt, the rolled-by-hand rice balls, and the staff-led grilling come together as a single, coherent ritual. Located a 5-minute walk from Sinyongsan Station Exit 1, it is an easy add-on for travelers exploring Yongridan-gil, the National Museum of Korea, or the wider Yongsan-gu food scene. If you want to extend the experience at home, our recipe for samgyeopsal with minari and our guide to banchan for Korean BBQ are the natural next reads.

Verify current hours, prices, and reservation availability on the restaurant’s official Naver Place listing before visiting, as menu and pricing in Seoul’s Korean BBQ scene change frequently.