# Gangnam tonkatsu restaurant with solo dining booths: Sioldon - By Yeoun (https://superchart.com/en/@after-dusk-gyeonggi/) - Written Sep 13, 2026 - Local places › Restaurants › Gangnam, Seoul - Sponsored: This post was created through a sponsored visit to the restaurant. - English edition: https://superchart.com/en/@after-dusk-gyeonggi/daechung-station-donkatsu-siol-don/ - Also in: [한국어](https://superchart.com/ko/@after-dusk-gyeonggi/daechung-station-donkatsu-siol-don/index.md) ## In short Sioldon Ilwon Branch is a tonkatsu restaurant in Irwon-dong, Gangnam, Seoul, near Samsung Medical Center. I tried the ₩14,900 tenderloin cutlet set and limited premium loin cutlet set, with their crisp crusts and juicy meat standing out. Verdict: a satisfying, quiet spot for a proper solo meal. ## Good to know - **Address**: Floor 1, 12 Irwon-ro 9-gil, Gangnam-gu, Seoul, South Korea (서울 강남구 일원로9길 12 1층) - **Hours**: 11:00–20:30 - **Break time**: 14:30–17:00 - **Last order**: 20:00 - **Parking**: Dedicated spaces in front; the mechanical public parking lot opposite is recommended when full. - **How to order**: Order in advance at the dedicated kiosk by the entrance. - **Tenderloin cutlet set**: ₩14,900 - **Premium loin cutlet set**: ₩14,900; limited quantity *as written by the visitor on Sep 13, 2026* Today, I went to the dining alley in Irwon-dong near Samsung Medical Center and had some seriously good tonkatsu. I went at lunchtime, and even though it was a weekend lunch, it was fully booked. There were lots of people dining alone, and above all, the cutlets were truly delicious :) There is no small but certain happiness quite like making sure you eat a proper meal in everyday life, right? The place I visited this time was Sioldon Ilwon Branch (시올돈 일원점), a tonkatsu specialist known for deep flavor from 72-hour cross-aging and nuruk-salt brining. From a detailed texture review of the tenderloin cutlet set and premium loin cutlet set I actually ordered and enjoyed, to the atmosphere and parking tips, I have put everything together for you. ![Sioldon Ilwon Branch tenderloin cutlet and premium loin cutlet sets](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-01-x0tse-1200.webp) ## Sioldon Ilwon Branch location and visitor information - Address: Floor 1, 12 Irwon-ro 9-gil, Gangnam-gu, Seoul, South Korea (in the dining alley directly in front of Samsung Medical Center) - Hours: 11:00–20:30 (break time 14:30–17:00 / last order 20:00) - Parking: Dedicated parking is available directly in front of the restaurant; if it is full, the mechanical public parking lot directly opposite is recommended. - Ordering: Pre-order through the dedicated kiosk at the entrance. It is right by Samsung Medical Center’s main gate and the dining alley, making it wonderfully convenient for hospital visitors or nearby office workers to have lunch or dinner. Parking is usually a little tricky in this neighborhood, but there is parking in front of the restaurant, so visiting by car did not feel burdensome either. ## The interior and seating, ideal for solo dining ![Clean interior of Sioldon Ilwon Branch](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-02-d9teh-900.webp) ![Partitioned seating at Sioldon Ilwon Branch](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-03-1nizi-900.webp) ![Solo dining seats at Sioldon Ilwon Branch](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-04-1eduo-900.webp) ![Bar-table seating at Sioldon Ilwon Branch](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-05-v9hz5-900.webp) The first impression upon entering was one of neatness and comfort. The interior was kept very clean and tidy, and it almost felt as though I had come to a newly opened restaurant. The seating arrangement, in particular, was very efficient and thoughtfully planned. - Private partitioned seats: Each seat is separated into its own section, so you can focus entirely on your meal without worrying about other people’s eyes. - Two-person tables and bar seating: There are plenty of tables for one or two guests, so this seems like an excellent choice for anyone looking for a comfortable, quiet place to dine alone near Samsung Medical Center. ## 72-hour cross-aging and nuruk-salt brining What makes Sioldon’s tonkatsu special is its aging technique and brining method. ![Information on 72-hour cross-aged tonkatsu](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-06-17y1n-900.webp) ![Information on nuruk-salt-brined tonkatsu](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-07-1qkhp-900.webp) - 72-hour cross-aged Korean pork: They say a dedicated aging room makes the meat even more tender and maximizes its savory depth. - Nuruk-salt brining: Instead of ordinary salt, they use nuruk salt—nuruk is a Korean fermentation starter—to deepen the meat’s flavor and lock in its juices. When the tonkatsu, made with all this care, arrived at the table, its nutty aroma and appearance were more than enough to whet my appetite. ## Tenderloin cutlet set and premium loin cutlet set The dishes we ordered that day were Sioldon’s signature tenderloin cutlet set and the premium loin cutlet set, a limited-quantity specialty cut. They were ₩14,900 each. ### Tenderloin cutlet set ₩14,900 ![Sioldon tenderloin cutlet set meal](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-08-1x94d-900.webp) ![Moist tenderloin cutlet from the set meal](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-09-1crq1-900.webp) ![Tenderloin cutlet and accompanying sauces](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-10-kmubx-900.webp) ![Tenderloin cutlet with crisp breading](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-11-1pyx3-900.webp) With its rounded shape and bright pink juices, the tenderloin cutlet looked wonderfully moist at a glance. The tenderness the moment I took a bite was, literally, next-level. The breading was thin and crisp, while the tenderloin inside was so soft it gently came apart in my mouth without any real chewing. Perhaps thanks to the nuruk-salt brine, the meat itself carried a subtle, deep seasoning, so I recommend enjoying the first piece on its own. Add a little of the pink salt, wasabi, or fresh perilla-seed sauce served alongside it, and the clean, refined flavor comes even more alive. ### Premium loin cutlet set ₩14,900 ![Sioldon premium loin cutlet set meal](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-12-fzzd3-900.webp) ![Limited-quantity premium loin cutlet set](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-13-jpcj4-900.webp) ![Premium loin cutlet containing gabrisal pork collar](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-14-1m6i7-900.webp) ![Premium loin cutlet with layers of fat and lean meat](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-15-1siye-900.webp) ![Premium loin cutlet with tonkatsu sauce and mustard](https://img.superchart.com/images/daechung-station-donkatsu-siol-don/daechung-station-donkatsu-siol-don-16-hv4zb-900.webp) Unlike regular loin, the premium loin cutlet is a limited-quantity specialty cut that includes gabrisal, the pork collar cut at the top of the loin. The lean meat’s clean flavor and satisfying chew blend intriguingly with the nutty, rich flavor of the upper fat layer. The savory fat flavor that bursts out as you chew is especially appealing. The crisp breading, springy yet moist lean meat, and soft fat create a perfectly balanced trio. Dip it in the tonkatsu sauce with a little mustard mixed in, and it cuts through any potential richness, so you can enjoy it deliciously to the very end without growing tired of it. Sioldon Ilwon Branch is an Irwon-dong tonkatsu specialist where you can enjoy high-quality Korean pork, carefully cross-aged, at a reasonable price! With its clean dining space, kind service, and—most of all—excellent tonkatsu that perfectly delivers a crisp outside and moist inside, it was a very satisfying meal. - Those wanting a hearty, clean meal before or after visiting Samsung Medical Center - Those looking for a comfortable, pleasant place to dine alone in the Irwon-dong dining alley - Those who love premium Japanese-style tonkatsu that is crisp outside and moist inside If you want a flawless, satisfying tonkatsu meal near Irwon-dong, I strongly recommend stopping by Sioldon Ilwon Branch and experiencing the deep flavors of its tenderloin and premium loin cutlets for yourself! ## Where it is - Sioldon Ilwon Branch (시올돈 일원점) (시올돈 일원점) - Floor 1, 12 Irwon-ro 9-gil, Gangnam-gu, Seoul, South Korea (서울 강남구 일원로9길 12 1층) - 서울특별시 강남구 일원로9길 12 1층 - 37.489524, 127.0826117 - Google Maps: https://www.google.com/maps/search/%EC%8B%9C%EC%98%AC%EB%8F%88%20%EC%9D%BC%EC%9B%90%EC%A0%90/@37.489524,127.0826117,17z --- Superchart · https://superchart.com/en/@after-dusk-gyeonggi/daechung-station-donkatsu-siol-don/ · https://superchart.com/llms.txt