Seongbuk Western restaurant with a black cheese burger: 37.5 Signature

In short

37.5 Signature Mia Branch is a brunch and Western restaurant in Seongbuk, Seoul, set behind Mia Hyundai Department Store in front of the Lotte Castle entrance. For dinner the writer and her boyfriend ordered the new gourmet black cheese burger (15.9) and the Mont Blanc truffle pasta (23.9), and the jet-black bun and the thick cream piled into the Mont Blanc stood out most. With private bookings for 6 to 10 people and free parking, 37.5 Signature Mia Branch also works for family meals and get-togethers.

37.5 Signature Mia Branch cover photo

Good to know

Gourmet black cheese burger
15.9 (new menu item)
Mont Blanc truffle pasta
23.9 (salad included)
Location
Behind Mia Hyundai Department Store, in front of the Lotte Castle entrance
Parking
Free in the building's parking lot
Private bookings
Minimum 6, maximum 10 people
Instagram event
5% off a main dish for a story or post upload (3 or more hashtags, follow the restaurant)
Receipt review event
One free americano or soft drink
Self bar
Plates, water cups, wet wipes, napkins, water, aprons / ask staff for pickles
Price reference
₩15,900 ≈ $12 · ₩23,900 ≈ $17.5 (2026-09-15)

as written by the visitor on Sep 5, 2026

37.5 Signature Mia Branch cover photo

My boyfriend and I were out in Mia for the first time in a while, trying to figure out dinner. While looking up brunch spots near Hyundai Department Store, I found 37.5 Signature, which looked like it had a great atmosphere, so we went.

Where is 37.5 Signature Mia Branch, and where do you park?

37.5 Signature Mia Branch is located behind Mia Hyundai Department Store, right in front of the Lotte Castle entrance. You can use the building's parking lot for free.

Exterior of 37.5 Signature Mia Branch on the street

Since 37.5 Signature sits right on the street, with passersby visible right next to you, I thought it might feel a bit exposed — but actually, as evening came on, the wide-open view outside gave it a nice mood 🌃

Inside 37.5 Signature Mia Branch and private bookings for 6 to 10

Walking into 37.5 Signature Mia Branch, I felt the kind of upscale touch you'd expect from a Seongbuk brunch spot. I couldn't believe a Western restaurant with this kind of atmosphere existed in the Mia neighborhood — I'd love to bring my parents here next time :)

Full view of the dining hall at 37.5 Signature Mia Branch
Upscale interior of the restaurant
Neatly set table inside the restaurant

Every table was neatly set, and the sense of space was really well done — turns out 37.5 Signature also offers group bookings.

Group table space available for booking

It can seat a minimum of 6 and up to 10 people, so it's a great spot for family dinners, gatherings, or visiting as a group.

Interior with gold accent details

The interior is really well done, isn't it? Maybe it's the gold accents, or how well everything is coordinated, but this seems like a place a lot of people would pick for a date.

Tablet menu on the table

Menu lineup and discount events at 37.5 Signature Mia Branch

At 37.5 Signature Mia Branch you can browse the menu on a tablet, and true to its reputation as a brunch spot, it offers a wide range — from brunch dishes to steak, toast, pasta, pizza, and burgers, so it's great for sampling a bit of everything 🍔

Menu lineup including brunch, steak, and pasta dishes

There's an event where you get 5% off if you upload a story or post on Instagram.

  • Main menu items only
  • 3 or more hashtags
  • Follow 37.5 Signature

Just follow those three rules, post your update, get 5% off, and enjoy your meal 🍽

Sign for the Instagram upload 5% discount event

If you don't use social media or just find it a hassle, try the receipt review event instead. It's a great chance to get a free americano or soft drink 🌟 There are also coupons if you search on Naver, so grab those perks before you visit.

What the self bar stocks

Self bar with plates and water cups

Plates, water cups, wet wipes, napkins, water, aprons, and other essentials are available at this self bar — but order pickles from the staff!

Gourmet black cheese burger, 15.9: the new black-bun burger

Table with the ordered pasta and burger

What we ordered at 37.5 Signature Mia Branch was

  • Mont Blanc truffle pasta
  • Gourmet black cheese burger

these two items 📝

Plating on a big black plate

The plating on the big black plate really stood out — it had a bold, chic feel that felt refreshingly different.

Gourmet black cheese burger with black bun
Side view of the gourmet black cheese burger

The gourmet black cheese burger (₩15,900) isn't just served on a black plate — the burger bun itself is black too. This was a brand-new menu item.

Pickles served alongside the burger

It came with cute little pickles that suited my taste so well I kept asking for refills. They had a crunchy, tangy kick that paired really well with the burger.

Cross-section of the cheese burger cut in half
Fillings inside the two-patty two-cheese burger

Cutting it in half, doesn't the filling look even more generous? From the outside it just looked like two patties and two cheeses, but there were tomatoes and vegetables inside too, giving it a rich flavor.

Truffle cream pasta served in a Mont Blanc

Mont Blanc truffle pasta, 23.9, and how to eat it

The Mont Blanc truffle pasta (₩23,900) — usually pasta like this comes in a soft bread bowl called a panne, but serving it in a Mont Blanc with a crisp outside and soft inside felt really unique.

Salad served alongside the pasta

It comes with a salad on the side, so you don't need to order one separately — a two-birds-one-stone kind of dish 🥗

Close-up of the Mont Blanc truffle pasta

We like truffle so we went with that option, but there's also a spicy pollack roe cream version if you'd rather choose that.

Cream sauce served on the side

This cream sauce served on the side can be poured over the pasta once it thickens up,

Dipping torn Mont Blanc pieces into the cream sauce

or you can tear off pieces of the Mont Blanc and dip them right in — it's delicious either way, so try it a few different ways.

Thick truffle cream pasta noodles

The cream pasta was so thick that the truffle aroma really soaked in deep — it tasted like a more elevated version of a regular cream pasta.

Would I order the same dishes again?

I enjoyed my meal at 37.5 Signature Mia Branch so much that I'd order the exact same dishes if I came back. It's honestly not easy to find a restaurant you want to return to, but I've already saved this one. If you're running errands near Hyundai Department Store, be sure to stop by :)

Where it is

37.5 Signature Mia Branch37.5 시그니처 미아점

35 Dongsomun-ro 43ga-gil, B103 Seongjin Church, Seongbuk-gu, Seoul, South Korea서울특별시 성북구 동소문로43가길 35 성진교회 B103호

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