Gilpost · Seocho-gu, Seocho-dong

COSMIC SEOUL

코스믹서울 교대역점 Cosmic Seoul Gyodaeyeok-jeom A small coffee bar near Gyodae station, built around a bar counter and known for cream lattes you are told not to stir.

Korean · Seocho-gu, Seocho-dong

Data as of 2026-09-27 · Published 2026-09-29 · Compiled by Gilpost

Cosmic Seoul is a coffee bar two or three minutes on foot from exit 10 at Gyodae, at the far end of the ground floor of an older building on Beobwon-ro 2-gil. It opened in November 2024. A mirrored wall and a glass front make it look larger than it is: the room is built around a bar counter with only two or three tables, as several visitors point out. You order at a kiosk outside or from your seat by QR code. The signatures are the cream lattes — vanilla and butterscotch, which you are told not to stir — and a dense custard pudding, alongside a long list of non-coffee drinks including a latte poured over pandan syrup. It opened as a place that served coffee by day and drinks by night; it now closes at six. Closed Sundays. The posts we read run from November 2024 to August 2026.

The basics

4 posts say it is walkable from the station.

When it opens

Of 8 posts: 4 wrote Weekdays 08:00–21:00, 4 wrote Saturday 10:00–20:00.

The values differ, but the periods they were written in do not overlap. This looks like a change over time rather than a disagreement, and the top row is the most recently reported. We did not confirm it with the restaurant.

What people order

The most ordered dish is vanilla cream latte (바닐라 크림 라떼) — 4 of 9 posts.

The prices here are what bloggers wrote down in their posts, and they may have changed since. Check Naver Place for the current menu and prices. This list is not a menu board — it counts what bloggers actually ordered and ate. Check on Naver Place

• 바닐라 크림 라떼4 ate it
  vanilla cream latte₩6,300

  The house signature cream latte. Two people note you are told not to stir it — one explains the single straw that way. Two describe the cream as dense enough that it never mixes into the coffee, holding its layer to the last mouthful.

  ₩6,300 in the one June 2026 post that prices it, and one post notes it is iced only. A November 2024 visitor who prefers cream lattes to einspänner called it exactly their thing; a June 2026 visitor said the sweetness is not the usual vanilla-syrup kind.

• 초코 무스3 ate it
  choco mousse₩8,000

  A pure chocolate mousse with no cake in it at all. One visitor who expected something brownie-like was taken aback: firm whipped cream on top, and it dissolves in the mouth — you could eat it without teeth, they wrote. All three who ordered it liked it.

  ₩8,000 in one May 2025 post. Two people recommend pairing it with the americano — one warns that anyone who cannot take much sugar should order nothing else alongside it.

• 버터 스카치 크림 라떼3 ate it
  butterscotch cream latte₩6,800

  A latte under a butterscotch cream. All three people who ordered it wrote well of it — one said it pulled an audible "wow" out of them, another drank it as slowly as possible to make it last, a third praised the balance between the coffee's bitterness and the butterscotch.

  ₩6,800 in the one June 2026 post that prices it. The 2024 and 2025 posts give no price.

• 아메리카노3 ate it
  americano₩3,200

  The shop describes its beans as dark-chocolate-heavy with a full body, and two visitors say it tasted that way to them. They part company on acidity: a May 2025 post found it nutty and weighty with no bitterness at all, while a February 2025 post remembers a slight sourness.

  ₩3,200 in one post from May 2025. No post from 2026 gives a price, so we do not know what it costs now.

• 코스믹 커스터드 푸딩2 ate it
  cosmic custard pudding

  The house signature dessert. Two people describe it the same way — not a wobbly pudding but a firm, dense one — and one adds that the slightly bitter syrup is what makes it, scraped-to-the-bottom good.

  No post gives a price. A November 2024 visitor says only that it is on the pricier side; nobody wrote the number.

• 크림치즈 스콘1 ate it
  cream cheese scone

  One post says the scones are baked on site, another that theirs came out warm. The one person who ordered it singled out what comes with it — clotted cream and strawberry jam included, which they note many places do not do.

  No post gives a price. One visitor notes the desserts can be boxed to take away, and took a scone home.

• 그 밖의 디저트 (바나나 브륄레·휘낭시에·시리얼·황치즈 마들렌)1 ate it
  other desserts

  Items that only appear as names on the board. A November 2024 post lists banana brûlée and financiers, a February 2025 post a cereal dish, and an April 2026 cafe round-up records eating a yellow-cheese madeleine — without saying anything about how it tasted.

  No post gives a price or a description.

• 판단 라떼1 ate it
  pandan latte

  A latte poured over pandan syrup. The one person who ordered it says the syrup sits at the bottom and needs stirring in, and that it tastes of scorched rice — a second post describes it the same way, as a nutty, sweet latte like burnt-rice candy. Both note pandan is what gives kaya jam its flavour.

  No post gives a price. The one person who ordered it said that if you can only have one thing, this is what they would pick.

• 미숫가루 크림 라떼1 ate it
  misutgaru cream latte

  One of the non-coffee cream lattes. The person who ordered it wrote that they had never found a cream latte in Seoul to match the one that converted them years ago on the east coast — until this one.

  No post gives a price.

• 브라우니1 ate it
  brownie

  Served with ice cream. The one person who ordered it was startled by how dense it was — chewy enough that the small fork was no handicap, a textbook brownie — and adds that since it does not arrive warm, there is no rush over the ice cream.

  No post gives a price.

• 수박 주스(땡모반)1 ate it
  watermelon juice

  A June 2026 post lists it as new, alongside an ube milkshake. In August 2026 someone drank one and wrote that this was a day for pure fruit sugar, not for a nice nutty coffee.

  No post gives a price, and none says whether it is a summer-only drink.

• (아이스) 카페 라떼1 ate it
  cafe latte₩4,300

  The plain latte, without a cream top. The one person who ordered it found it nutty with almost no acidity and well balanced between milk and espresso — a version few people would object to.

  ₩4,300, from a single February 2026 post.

• 그 밖의 음료 (말차 라떼·민트 모히또)1 ate it
  other drinks

  A single April 2026 cafe round-up records a matcha latte and a mint mojito here. That post is photographs and names only, with nothing about how either tasted, and neither drink appears in the other eleven posts.

  No price anywhere. Two posts say the non-coffee list is long — one calls it a non-coffee paradise — but nobody wrote down what is actually on it.

• 주류 (저녁의 바)named in 3
  alcohol

  This is a coffee bar that pours drinks in the evening. Three visitors were struck by the bottles ranked behind the bar — and none of the three had one. One had stepped out of work; one guessed the place turns into a bar after dark; one noted that coffee and drinks are served all day and thought it would suit an afternoon glass.

  Nobody records what is poured or what it costs. Not one post names a drink — the words for wine, beer and whisky never appear — and the only hint is a post that tagged itself with "Gyodae cocktails". Of the twelve visits we read, not one was an evening visit for a drink.

• 붕어빵named in 1
  bungeoppang

  A February 2025 post reports that these are made to order from batter rather than reheated from frozen, so they take a while. That visitor did not actually order one, and none of the other eleven posts mention them, so we cannot say whether it is a winter-only item.

  No price, and nobody has eaten one.

Who came, and with whom

Getting there

Naver Map has a full English mode — Settings → Language → English. In Korea it gives better walking and transit directions than Google Maps.

Getting inside

No post says whether you can get in with a wheelchair or a pushchair. The words for wheelchair, pushchair, ramp, threshold and stairs do not appear once across the twelve posts — we checked by machine and again by hand. The address tells us it is on the ground floor; what the doorway is like, we do not know. All we have about the seating is that it is mostly bar stools.

No one mentioned: Second floor · In a basement · Lift to the floor · Ramp at the door · Step at the entrance · Step-free access · Toilet inside · Accessible toilet · Separate restrooms. That is not the same as there being none — it means we could not confirm it. Worth calling ahead, and do tell us: we will put it here.

How to read these posts

• Posts saying they paid themselves1 / 91 of 9 posts
• Posts saying nothing either way8 / 98 of 9 posts

Posts that followed a TV spot

Of the 11 posts we gathered, 2 went up on a single day right after a TV spot and show no sign of a visit. They retell the broadcast, so we left them out of the counts.

We do not discard them. That a TV spot produced a burst of posts is itself something worth knowing about a place, and a star rating will not show it.

When the posts appeared

What we do not know

• We dropped eight of the twenty candidate posts, leaving twelve posts by twelve people. The licence records the name as the single word "Cosmic", and the collection leaked badly because of it: five of the six we rejected were not about a shop at all, but about a Red Velvet song, a necklace collection described in a newspaper as a "cosmic ID", Tesla's Cosmic Silver paint, the iPhone's Cosmic Orange, and a game called Marvel Cosmic Invasion. The sixth was a different café of a similar name in Changwon. The sign, and everyone writing about it, says Cosmic Seoul.
• Two of the posts we set aside are the same copy. A café community put together a list of five places near Gyodae and it went up on two different blogs on the same day in March 2026, in nearly identical wording. Our shop's entry is a link to the community thread plus a one-line review written by somebody else — quiet, kind, tastes good, pretty cups. Neither writer records coming here or ordering anything, so neither counts.
• Three of the twelve are very thin: diary posts and café albums carrying more than ten check-ins each, where our shop gets a line or two — "Cosmic coffee, nice and sweet", "can't say no to watermelon", and one entry that is just a list of what they drank. The check-in widget sits right before each line, so we can tell the shop is ours and we counted them in the denominator; but we recorded no judgements from them about seats, queues or parking, only the drinks. Judged by how much is actually said about this place, nine posts carry the weight.
• Three people say this is not a place to settle in. A December 2024 visitor points to the backless bar stools and an interior that does not invite you to stay. A May 2025 visitor, unable to plug in a laptop because there is no socket near the tables, states outright that she would not recommend it to anyone looking for somewhere to study or work. A February 2025 visitor found it a place for a quick chat over coffee rather than for reading alone. A February 2026 visitor says the opposite — that it suits coming alone with a laptop. Four people, and they do not agree.
• The closing time has moved forward by two and a half hours. Four posts from November 2024 to May 2025 give nine in the evening on weekdays (Saturdays ten to eight); one from July 2025 gives eight; and two, from February and June 2026, give six, with Saturdays eleven to six. Six posts say it is closed on Sundays. One post from February 2025 has Saturday running to nine as well, and no other post agrees with it. If the most recent figure holds, it now shuts at six — though no post after June 2026 gives the hours at all.
• The evening side of this place is something we could not read. It opened serving both coffee and drinks — a November 2024 visitor notes both are poured all day; a December 2024 visitor was startled by the ranks of bottles and guessed it turns into a bar after dark; a July 2025 visitor thought she had walked into a café and found a wall of spirits. And yet not one of the twelve people drank anything here. All three saw the bottles on a daytime visit; one had stepped out of the office and ruled it out on those grounds. Nobody writes what is poured or what it costs: the words for wine, beer and whisky never appear across the twelve posts, and the only trace is a single hashtag about cocktails near Gyodae. Since the 2026 posts have it closing at six, we cannot even confirm the evening bar still exists.
• Three posts say dogs are welcome, and we counted none of them, because all three are copied. The line sits inside a run of facility icons — pet-friendly, takeaway discount, paid parking — and none of the three writers mentions a dog again. Nobody brought one, and nobody saw one. Given a small room built around bar stools, it is worth asking the shop.
• You may not get a seat — though only two posts talk about it. A February 2025 visitor reckoned there would be no chance on a weekday and was glad of the weekend; she ordered at 1:39, watched people keep arriving, and saw some leave again because there was nowhere to sit. A July 2025 visitor found it full at lunchtime and could not photograph the seating, but she did get a place at the bar. Nobody reports waiting. It reads less like a place where you queue for a table than one where you take the coffee away if the room is full.
• Not one of the twelve posts mentions a toilet — whether there is one inside or whether you use the building's. That means nobody wrote it down, not that there is none. One post notes the shop is unit 106 on the ground floor of an older building that also holds a restaurant two floors down and a haejang-guk place.
• No post mentions a floor level or stairs. The address and the check-in widget both say unit 106, ground floor, and one visitor confirms it is at street level — but whether there is a step up to the door, or a level floor inside, nobody wrote. Two posts mention a restaurant two floors below in the same building; the stairs they describe are that restaurant's.
• Only four posts give a price, and not one of them calls the place cheap or expensive. An americano at ₩3,200 in May 2025, an iced latte at ₩4,300 in February 2026, the vanilla cream latte at ₩6,300 and the butterscotch at ₩6,800 in June 2026, and the chocolate mousse at ₩8,000 in May 2025 — that is everything we have. Of the signature custard pudding, a November 2024 visitor says only that it is on the pricier side, and nobody wrote the number. Whether prices have moved we cannot tell: no dish is priced twice.
• Not one post declares a sponsorship. One of the twelve states plainly that she paid her own way; the other eleven say nothing. We read the bodies and the trailing hashtags and found no mention of free drinks, review programmes or paid copy. The two posts we set aside are a different matter — a community round-up placed on two blogs on the same day — and they are not in the count. A June 2026 post reads promotional in tone, but declares nothing, so we have left it as undeclared rather than guessing.

Sources (9)

Every number above was counted from the posts below.

1. [서초동/교대역 카페] 서초에서 찾기 힘든 느좋 감성 카페 '코스믹서.... 2026-06-23 · 현제이식욕이날지배함
2. [교대역 카페] 코스믹서울 교대역점｜조용한 분위기 라떼맛집 🥛 2026-02-01 · Unordinary but still ordinary · via Daum
3. 월간 직장인의 점심 25.12월호 2026-01-03 · 춘코의 하루 · via Daum
4. 역&교대역 숲뷰 가능한 카페&바, COSMIC SEOUL(코스믹서울) 교대역점 | 숲으로 데려가주는 듯한 초록... 2025-07-12 · 유대하우스 · via Daum
5. [교대] 첫방문에 단골예약 해버린 교대역 10번 출구 분좋카 '코스믹.... 2025-05-09 · 미수의 그밥에 그음악
6. 주말이라 앉을 수 있는 작은 카페 알찬 메뉴 교대 카페 코스믹 서울 .... 2025-02-28 · Hi, Summer
7. [코스믹 서울] 교대역 힙한 카페 숨은 이색 맛집 분위기 좋은 신상카.... 2024-12-28 · BAOT ESTHETIC
8. 서울 교대역 카페, 눈 와서 더 좋았던 코스믹서울 2024-11-30 · songsong.yi
9. 교대역 감성 카페 '코스믹서울' 2024-11-19 · 묜짱구의 우당탕탕 블로그 ⋆◡̎⋆ · via Daum

Of 222 candidate posts we opened 120 and kept 9 as evidence. We have not seen them all yet; another pass would add more.

• Business licence — data.go.kr
• Naver blog search
• Daum blog search