Ilwon-dong tonkatsu with 4 dipping sauces and katsudon: Sioldon

In short

Sioldon Ilwon Branch (시올돈 일원점) is a tonkatsu restaurant in Ilwon-dong, Gangnam, Seoul, serving pork aged for 72 hours. Arriving right after the 14:30–17:00 break, the writer ordered the tenderloin katsu set and a katsudon (pork cutlet rice bowl), and the staff explained four ways to eat it: Himalayan salt, wasabi, whole grain mustard and katsu sauce. Crisp outside and tender inside, the tenderloin katsu and katsudon at Sioldon Ilwon Branch make it a weekly stop for anyone living in Ilwon-dong.

Cross-section of Sioldon's crispy-coated tenderloin katsu

Good to know

Hours
Mon–Sun 11:00–20:00 (break 14:30–17:00)
Address
1F, 12 Ilwon-ro 9-gil, Gangnam-gu, Seoul (Ilwon-dong 687-4)
Getting there
10-minute walk from Daecheong Station or Ilwon Station, Line 3
Parking
Free parking for up to 2 cars in front of the restaurant
Ordered
1 tenderloin katsu set, 1 katsudon
Cooking time
Cooking starts when you order; about 15 minutes
Takeout
2,000 won off for takeout
Closed
Temporarily closed on the 25th

as written by the visitor on Sep 23, 2026

A full table spread of tonkatsu at Sioldon Ilwon Branch

I've reviewed so many katsu and tonkatsu places already, but…

FRIDAY, the trend-hunter who's serious about tonkatsu

I found a great katsu spot while visiting Ilwon-dong in Seoul, so let me introduce it!

Where is Sioldon Ilwon Branch? Hours, parking and directions

Sioldon Ilwon Branch is a tonkatsu restaurant located at 12 Ilwon-ro 9-gil, 1F, Gangnam-gu, Seoul (Ilwon-dong 687-4). It's a 10-minute walk from both Daecheong Station and Ilwon Station on Line 3, and there's free parking for up to 2 cars in front of the restaurant.

  • Hours: Mon–Sun 11:00–20:00 (break time 14:30–17:00)
  • Address: Ilwon-dong 687-4 / 12 Ilwon-ro 9-gil, 1F, Gangnam-gu, Seoul
  • 10-min walk from Daecheong Station & Ilwon Station, Line 3
  • Parking: Free in front of the restaurant (up to 2 cars)
Exterior of Sioldon Ilwon Branch

I went right after break time ended, but there were still quite a few customers at the tables. As someone who's serious about katsu restaurants, I was really excited.

An Ilwon-dong tonkatsu favorite near Samsung Seoul Hospital

Notice about the temporary closure on the 25th

Just a heads up, they're temporarily closed on the 25th🙌🏻

Naver reservation guide and entrance view

A useful tip! If you book through Naver Reservations before entering, you can get seated faster.

Partitioned table seating at Sioldon Ilwon Branch

72 hours of aging for premium tonkatsu

The tables have partitions like this, so it's comfortable to eat here even with family.

What's on the menu at Sioldon Ilwon Branch

Menu board showing tonkatsu set meals at Sioldon Ilwon Branch

Sioldon's value set, sirloin katsu set, tenderloin katsu set, cheese katsu set, special sirloin katsu set + special cut, mixed katsu set, katsudon, kimchi nabe, cheese nabe, cheongyang curry udon, tomato curry udon, cold soba. The menu was really varied. It seems like a good place to come with kids too.

Menu board listing nabe, udon, and cold soba

You can add extra menu items.

Sign showing extra menu add-on options

For drinks, there's Sprite, zero-sugar cola, and beer.

Drink menu showing Sprite, zero-sugar cola, and beer

The value set prices were so reasonable👍🏻

Cooking starts as soon as you order and takes about 15 minutes; ₩2,000 discount for takeout

Guide explaining how to best enjoy tonkatsu

Four ways to eat tonkatsu: salt, wasabi, mustard and katsu sauce

The tables at Sioldon Ilwon Branch have a guide on the recommended order for eating tonkatsu, so I read it carefully. It starts with no sauce at all, then Himalayan salt, then wasabi or whole grain mustard, then tonkatsu sauce.

  • 1. Taste the katsu plain first, no sauce, to enjoy its flavor and texture
  • 2. Try it dipped in Himalayan salt
  • 3. Add a little wasabi or whole grain mustard on top
  • 4. Mix mustard into the tonkatsu sauce and dip it in

If you need more sauce, the staff kindly bring you more.

Tasting the tenderloin katsu set and katsudon

We ordered 1 tenderloin katsu set and 1 katsudon. As a tenderloin katsu lover, I got the tenderloin katsu, and my companion wanted a rice dish so they ordered the katsudon.

Tenderloin katsu set and katsudon table spread

Sioldon's ultra-tender tenderloin katsu, made from domestic Korean pork cross-aged for 72 hours and cured with nuruk salt

Cross-section of Sioldon's crispy-coated tenderloin katsu

How can the meat be this tender while the outside stays this crispy‼️ My katsu was so good that two pieces got stolen from me.

Extra savory thanks to clean frying oil

And the salad dressing was so good it passed the test too. The pairing with salad matters a lot for tonkatsu.

Salad served alongside the tenderloin katsu set

With wasabi, whole grain mustard, katsu sauce, and Himalayan salt all on the table, dipping and tasting was fun.

Four sauces: wasabi, whole grain mustard, katsu sauce, and Himalayan salt

Sioldon's deep-flavored katsudon, crispy tonkatsu generously topped with a sweet and salty special sauce

I couldn't lose out — I tried the katsudon too.

Sioldon's katsudon topped with onions and tonkatsu

With the katsudon, the meat didn't seem to be tenderloin, but it was still tender, and even though the onions could easily have made it greasy, it kept tasting good bite after bite.

Who will enjoy Sioldon Ilwon Branch most

  • ✅ Visiting Seoul and looking for a great tonkatsu restaurant
  • ✅ Looking for a good restaurant in Ilwon-dong, Seoul
  • ✅ Looking for a friendly restaurant in Ilwon-dong, Seoul
  • ✅ Looking for a restaurant near Samsung Seoul Hospital

It was a day that made me so envious of people living in Ilwon-dong, Seoul. If I lived there, I think I'd definitely visit once a week haha.

Where it is

Sioldon Ilwon Branch시올돈 일원점

12 Ilwon-ro 9-gil, 1F, Gangnam-gu, Seoul, South Korea서울특별시 강남구 일원로9길 12 1층

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Local places · Restaurants