Gilpost · Seongdong-gu, Seongsu-dong 1-ga
Cafe
Áhoo
아후 Ahu Ahoo is the sound of a child blowing out birthday candles — the shop says the name came from that picture.
Compiled from 13 blog posts read in fullSources →
Ahoo is a cake shop on Ttukseom-ro in Seongsu, in a side street between Seoul Forest and Seongsu stations, opposite Gyeongil Elementary School. It sells single-serve mousse cakes shaped like rabbits, bears and hearts, plus whole cakes, and most people reserve ahead and pick up. Prices in the posts: 12,500 won for the black or white rabbit, 13,500 won for the Airy Heart petit gâteau, 58,000 won for the whole Airy Heart. We read 30 posts from March 2025 to October 2026; 17 of them describe going in and buying. The rest are gifted cakes, multi-shop roundups, or write-ups copied from the listing.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 뚝섬로 341-18, 1층 (성수동1가)341-18 Ttukseom-ro, Seongdong-gu, Seoul
- Phone0507-1496-0370
- Typical spend₩12,500 – ₩63,000
- From the station2 posts say it is walkable from the station.
- Floor areaFloor area 39 m² · Status In business
When it opens
Of 7 posts: 5 wrote 12:00–19:00.
| No day given | 12:00–19:00 | 5 of 7 posts |
|---|---|---|
| Closed | Sunday | 5 of 5 posts |
| Closed | Monday | 4 of 5 posts |
Counted from what bloggers wrote in their posts; we did not confirm it with the restaurant. Where the values differ, it may be a change over time rather than a disagreement, so we show when each one was written.
What sets it apart
- This is a reserve-and-collect shop. Nine of the visit posts booked ahead through Naver, Catchtable or an Instagram DM. One got a same-day booking and collected right away, and another walked in without one and bought a petit gâteau. One November 2025 post says a Catchtable glitch put their booking on a Monday, the closed day, and the shop phoned them that morning.
- The shop is small: four posts said so, one calling the space really cramped. The seating that's described is a bar counter (one post said it fits about three people), and writers treated it as a place to buy and go rather than sit.
- Five posts took their cakes away, and careful packing comes up repeatedly: a free cold pack for a 30-minute trip, a fresh cake brought out from the back. One cake softened on top during a bus ride; another got knocked out of shape on the way.
- Two posts walked in: about 8 minutes from Seoul Forest station, or 7-8 minutes from Ttukseom exit 5 or Seongsu exit 4. A parent who took the subway back with a baby found the station's stairs and escalators daunting and the lift slow — that's about the station, not the shop.
3 more
- Opinions on sweetness split: two posts found the cakes sweet though balanced, one said the sweetness wasn't overpowering. Two said they weren't heavy or greasy.
- Two posts said prices were lower than expected — around 10,000-odd won for a petit gâteau. The writer who paid 58,000 won for a whole cake allowed that some would find it pricey, but felt it was worth it.
- Four posts bought a cake for a friend's birthday and two for a partner's. Several carried it to a restaurant; at one, the staff cutting it asked whether it was a stuffed toy.
What 13 bloggers said
heuk-tokki
Sweet
We read all 13 in full. The most common claims are “Cramped” (4) and “Sweet” (2).
What they liked
What they struggled with
Things you can check on site
- Takes reservations 9 of 13 posts
- Takeout 5 of 13 posts
- Seats to sit and eat 4 of 13 posts
- Reachable by transit 2 of 13 posts
- Counter seating only 2 of 13 posts
- Coffee served 1 of 13 posts
- Step at the entrance 1 of 13 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Who came, and with whom
- With a friend 4 of 13 posts
- Date 2 of 13 posts
- Came by car 2 of 13 posts
- Came with children 1 of 13 posts
Where it is
We could not find this shop’s own listing on Naver Map, so the link searches for its Korean name around this spot instead.
From the station
Two posts walked in: about 8 minutes from Seoul Forest station, or 7-8 minutes from Ttukseom exit 5 or Seongsu exit 4. A parent who took the subway back with a baby found the station's stairs and escalators daunting and the lift slow — that's about the station, not the shop.
Getting inside
| In a basement | yes 0 · no 1 (of 13 posts read) |
|---|---|
| Step at the entrance | 1 of 13 posts |
The entrance is half a floor up. One post said you climb a short, shallow flight of stairs on the right to reach the door; another pointed to a sign reading '1.5F'. Others went up the wrong stairs at the front and had to come back down after spotting the sign — enter on the marked side.
No post mentions getting in with a wheelchair or stroller, or any ramp or lift. Given the stairs above, check before going — nobody wrote about it, which isn't the same as there being none.
No post mentions a toilet. Most visitors only picked up, so we don't know whether there is one inside.
No one mentioned: Second floor · Lift to the floor · Ramp at the door · 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 themselves6 of 13 posts
- Posts saying nothing either way7 of 13 posts
Posts that followed a TV spot
Of the 26 posts we gathered, 13 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
Month by month
| Month | Posts |
|---|---|
| 2025-03 | 1 |
| 2025-06 | 1 |
| 2025-10 | 1 |
| 2025-11 | 1 |
| 2025-12 | 2 |
| 2026-02 | 2 |
| 2026-03 | 1 |
| 2026-04 | 1 |
| 2026-06 | 1 |
| 2026-07 | 2 |
What we do not know
- No post describes queuing. Those who arrived near closing found the case nearly empty, so writers advised reserving if you want a particular cake.
- Seven visit posts give the same hours, 12:00 to 19:00 (some copied from the listing). For days off, four say Sunday and Monday, one says Sunday only, one says open daily. A November 2025 visitor confirmed Monday is a closed day when the shop phoned about a booking glitch. Check the shop's Instagram for extra closures or early sell-outs.
- Whole-cake prices vary by design: 58,000 won for the Airy Heart (June 2025); a gifted post relayed 63,000 won for the black rabbit (September 2026). No one gave a price for the Big Teddy, and no post mentions a price change.
- The phone number 0507-1496-0370 appears in two posts' info boxes. Two other posts gave a different number and different addresses that match nothing else, so we ignored them. Bookings were made through Naver, Catchtable or Instagram DM.
- Three write-ups follow the same template, repeating the shop's own blurb (the candle-blowing origin, '541 m from Seoul Forest exit 2', 'a bar table with four stools') with no first-hand detail. We treated them as copied and didn't count them.
Sources (13)
Every number above was counted from the posts below.
- 육아일기 #5 | 만 4개월 | 생후 121일 ~ 150일 기록, 영유아검진 2차, 잠퇴행, 감기, 배밀이 고수 2026-07-22 · 오미의 나날 · via Daum
- [ 서울/광진구 ] 성수 뚝섬 근처 느좋 미니 케이크를 찾고 계신다면? .... 2026-07-03 · 소중히 정리해둔 일상 속 설렘
- 성수동 기념일 내돈내산 서울숲 케이크 추천 아후 AHOO 2026-06-13 · 제이네 여행로그
- 성수 [아후 Ahoo] 기념일 케이크 추천 • 사랑스러운 테디베어 2026-04-10 · just
- 퇴사를 기다리며(던).. 겨울 일상. waiting(-ed) for twesa.. 2026-03-26 · colorfulRE · via Daum
- [성수카페] 핫한 디저트 카페 아후(AHOO) 발렌타인 초콜릿 픽업 내돈.... 2026-02-21 · 펜시브(Pensieve)
- 성수동 케이크 맛집 | 서울숲역 힙하고 예쁜 케이크 전문점 아후(AHoo.... 2026-02-15 · 블리쩡의 일상
- 파티기록_뚝섬숯불갈비, 아후Ahoo, 브루어리을를 2025-12-22 · 뭐어때
- 성수카페 아후케이크(Ahoo) ㅣ 토끼 홀케이크 비주얼 미쳤다 2025-12-09 · 리뷰하는 라복치
- 2박 3일 생일 2025-11-15 · ₍ᐢɞ̴̶̷.̮ɞ̴̶̷ᐢ₎
- 성수 | 나만 알고 싶은 귀엽고 예쁜 갸또, 미니케이크, 생일케이크, .... 2025-10-13 · 오예의 리뷰리뷰
- 서울숲 성수 뚝섬 디저트 맛집 • 아후 Ahoo 케이크 ️✨ 2025-06-06 · 맛고집 온더스팟
- 성수 분위기 좋은 오마카세 추천 #뮐 #한우오마카세추천 성수 데이트코스 #터프팅클래스 #키링만들기... 2025-03-20 · 작은집 · via Daum
Of 285 candidate posts we opened 48 and kept 13 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.