Hangover soup restaurant near Seosan Techno Valley: Ilpum Yangpyeong

In short

Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch is a haejangguk (Korean hangover soup) restaurant in Seongyeon-myeon, near Seosan Techno Valley in Seosan, Chungnam. For lunch on day one of a Seosan trip, the writer ordered the large Yangpyeong haejangguk at 14,000 won and galbitang (short rib soup) at 16,000 won: the seonji (blood curd) and cheonyeop (beef tripe) tasted clean with no gamy edge, and the galbitang came with plenty of rib meat. With a wide parking lot and a big hall, Ilpum Yangpyeong Haejangguk suits both solo diners and large groups.

Signature bowl of Yangpyeong haejangguk at Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch

Good to know

Address
127 Seongyeon 3-ro, Seongyeon-myeon, Seosan-si, Chungcheongnam-do
Hours
7:00 AM – 10:00 PM
Yangpyeong haejangguk (large)
14,000 won
Galbitang (short rib soup)
16,000 won
Menu
Yangpyeong haejangguk, pork bone haejangguk, sundae gukbap, naejangtang (beef tripe soup), yukgaejang, galbitang
Side dishes
Kkakdugi (radish kimchi), cabbage kimchi, cheongyang chili, onion, mustard soy sauce
Parking
Wide parking lot behind the restaurant
Seating
Spacious hall with group tables at the back

as written by the visitor on Sep 22, 2026

Lunch on day one of our Seosan trip happened near Seosan Techno Valley in Seongyeon-dong, which was right on our route. We went to Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch, a place my husband loves~!

Signature bowl of Yangpyeong haejangguk at Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch

Where is Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch, and when is it open?

Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch is at 127 Seongyeon 3-ro, Seongyeon-myeon, Seosan-si, Chungcheongnam-do, near Seosan Techno Valley. It's open from 7am to 10pm, so you can eat here anywhere from early morning to a late dinner.

Exterior of Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch, a haejangguk restaurant in Seosan
Sign and entrance of Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch

Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch has a large, convenient parking lot in the back, so it was easy to come by car. Being near Seosan Techno Valley, it's also a good stop on a commute or after a work meeting.

Sign showing business hours from 7am to 10pm

Inside Ilpum Yangpyeong Haejangguk: a wide hall for solo meals and group dinners

Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch has a wide hall with generous space between tables, so groups can sit comfortably too. It's also one of the more well-known Yangpyeong haejangguk franchises nationwide.

Interior atmosphere of Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch
Spacious hall seating with generous table spacing

It was easy to spot from the main road too.

View of the restaurant, easy to spot from the main road

The restaurant is so spacious, with group seating tucked in the back, that it seemed perfect for a group gathering in Seosan.

Seating in the back, comfortable for solo diners

It felt totally comfortable eating alone too — I saw plenty of solo diners. You can get a solid, filling meal quickly here.

What is on the menu at Ilpum Yangpyeong Haejangguk?

The menu at Ilpum Yangpyeong Haejangguk carries flavor, spirit, and nostalgia. Haejangguk (hangover soup) really is Korean soul food. There's Yangpyeong haejangguk loaded with sundae (blood) and offal, bone haejangguk, sundae gukbap, naejangtang (offal-only soup), yukgaejang, and galbitang.

Menu board at Ilpum Yangpyeong Haejangguk

My husband ordered the large Yangpyeong haejangguk, and I ordered the galbitang.

Table with the ordered Yangpyeong haejangguk (large) and galbitang

Yangpyeong haejangguk (large), 14,000 won — how do the seonji and cheonyeop taste?

The large Yangpyeong haejangguk is 14,000 won and came in a big, steaming hot ttukbaegi (stone pot), with more volume than the regular size. Basic side dishes included kkakdugi, cabbage kimchi, cheongyang chili, and onion, plus a mustard soy sauce.

Basic side dishes: kkakdugi, cabbage kimchi, cheongyang chili, and onion
Yangpyeong haejangguk (large) served in a stone pot

From the very first spoonful, it felt like it cleared my stomach right up. It's not too spicy or too salty, so it tastes great.

Ingredients in the soup, including cheonyeop and sundae

There was plenty of cheonyeop (beef tripe), sundae (blood), and other pork offal in it. I loved how much bean sprouts there were.

Yangpyeong haejangguk (large) full of bean sprouts

It really was the large size — so generous! The bean sprouts kept their crunch, and the sundae was soft and clean with no gamy taste at all. The broth was rich and spicy-hot, so refreshing. The cheonyeop was well-boiled and tender too. Dipping it lightly in the mustard soy sauce made it even more delicious.

Galbitang, 16,000 won — rib meat and ginseng in the bowl

The galbitang was 16,000 won, served in a very large ttukbaegi with a huge portion. There was plenty of rib meat in it too, which made it fun to fish out and eat.

Galbitang, ₩16,000, served in a large stone pot
Galbitang generously filled with rib meat

I even fished out the slightly bitter ginseng and chewed on it haha. The meat came off the bone easily, so it would be great for feeding kids too.

Clear yet rich galbitang broth with a bowl of rice

The broth was clear yet rich, so refreshing that my spoon kept going back in~! My husband and I shared it. We're the type who like to mix rice into the soup, so we did that too haha. Definitely a delicious spot for haejangguk in Seosan.

Sua's tips for visiting Ilpum Yangpyeong Haejangguk

  • A good haejangguk restaurant near Seosan Techno Valley
  • Convenient parking, great for group gatherings
  • Comfortable atmosphere for solo dining too
  • Rich broth, clean with no gamy taste
  • Good spot to stop after a work meeting
  • A hearty lunch during a Seosan trip
  • Recommended haejangguk restaurant in Seongyeon

Where it is

Ilpum Yangpyeong Haejangguk Seosan Seongyeon Branch일품양평해장국 서산성연점

127 Seongyeon 3-ro, Seongyeon-myeon, Seosan-si, Chungcheongnam-do, South Korea충청남도 서산시 성연면 성연3로 127

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