# Seongsu café-bar with peanut butter soft serve at night: Mellows - By Rahi (https://superchart.com/en/@weekend-cafe-circuit/) - Written Sep 23, 2026 - Local places › Cafés › Seongdong, Seoul - Sponsored: This visit was sponsored by the business. - English edition: https://superchart.com/en/@weekend-cafe-circuit/mellowz-seongsu-night-peanut-butter-soft/ - Also in: [한국어](https://superchart.com/ko/@weekend-cafe-circuit/mellowz-seongsu-night-peanut-butter-soft/index.md) ## In short Mellows is a café and bar in a red-brick building down a Seongsu alley in Seongdong, Seoul. On a late-night return visit, peanut butter soft serve with an iced latte came with dimmed lighting that turned the daytime café into a small bar. With an americano at 2,500 won, Mellows stays easy on the wallet for Seongsu. ## Good to know - **Americano**: 2,500 won - **Café latte**: 3,200 won - **Vanilla latte**: 3,500 won - **Soft serve flavors**: Milk (base), affogato, matcha, chocolate, peanut butter; fruit: mango, strawberry, peach - **Evening menu**: Espresso martini, Negroni, whiskey sour, highball, mojito and more - **Seating**: Outdoor tables and chairs out front, compact indoor space - **Address**: 7 Wangsimni-ro 10-gil, Seongdong-gu, Seoul (1st floor) - **Price reference**: ₩2,500 ≈ $1.8 · ₩3,200 ≈ $2.4 · ₩3,500 ≈ $2.6 (2026-09-23) *as written by the visitor on Sep 23, 2026* Hi, this is Mudeung 😊 I was around Seongsu and thought of Mellows, a place I'd visited before, so I dropped by again after a while haha. My first visit left a strong impression with the soft serve, and this time I went a bit later in the evening, so I got to feel a completely different atmosphere. ![Exterior of Mellows, the Seongsu café, visited at night](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-01-1linb-1200.webp) During the day it feels like a comfortable café for a casual coffee, but at night the lighting changes the whole vibe — it almost felt like stepping into a small bar lol. ![Mellows' nighttime atmosphere with the lights on](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-02-18bwg-966.webp) > Mellows ![Exterior of Mellows in a Seongsu back alley](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-03-19j8b-966.webp) ![Alley view with the Mellows sign visible](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-04-jtbwh-966.webp) ## Where is Mellows in Seongsu? Mellows sits on Wangsimni-ro 10-gil, tucked inside a Seongsu back alley in Seongdong-gu, Seoul. The alley leads from Ttukseom Station, so the neighborhood is packed with cafés and restaurants. ![The "Mellowz" lettering on the red-brick exterior](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-05-1ovjw-966.webp) Even with so many cafés and restaurants nearby, the red-brick exterior with the big "Mellowz" lettering catches your eye right away as you approach haha. There are also small tables and chairs set up outside, so on a nice day it'd be great to enjoy coffee or ice cream outdoors. This time I visited at night, and with the soft lighting turned on out front, it definitely felt different from daytime lol. Seongsu's old-building charm paired surprisingly well with Mellows' warm lighting. ![Outdoor tables in front of Mellows lit with soft lighting](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-06-cutqn-m-966.webp) ## Inside Mellows after dark: dim lights, bar mood Stepping inside Mellows, the first thing you notice is the wood-tone and OSB plywood interior. The walls and furniture have an overall warm color palette, and each table has its own small light, making the space feel quite cozy haha. ![Interior of Mellows decorated with wood tones and OSB plywood](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-07-39nxn-966.webp) On one side, liquor bottles are displayed alongside the coffee machine, and there's a Marshall speaker and a projector, giving it a looser vibe than a typical café. In the evening especially, a video plays on the screen and the lights dim, making it feel like a great spot to sit and talk for a while lol. ![Bar area at Mellows with the coffee machine and liquor bottles displayed](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-08-jg6o3-966.webp) It's not a huge café, but the compact size actually makes Mellows' own atmosphere stand out even more. ![Cozy indoor seating at Mellows](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-09-fmaih-966.webp) ![Mellows' evening interior with table lamps lit](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-10-18jig-m-966.webp) ## Mellows menu and prices: café by day, cocktails by night Looking at the Mellows menu, besides coffee and soft serve, you can also order cocktails and highballs in the evening. ![Coffee and drink menu board at Mellows](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-11-l0au9-966.webp) ![Soft serve menu board at Mellows](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-12-1ry9k-966.webp) Americano ₩2,500, café latte ₩3,200, vanilla latte ₩3,500 — the coffee prices were quite reasonable for a Seongsu café haha. The soft serve comes in milk as the base flavor, plus you can choose affogato, matcha, chocolate, peanut butter, and more. ![Sign listing milk and fruit soft serve flavors](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-13-yrcx4-966.webp) There were also various fruit soft serve options like mango, strawberry, and peach lol. The evening menu had quite a lineup too, from espresso martini to Negroni, whiskey sour, highball, and mojito. ![Evening menu at Mellows listing cocktails and highballs](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-14-qakeo-966.webp) One of the fun things about Mellows is how the available menu changes depending on whether you come during the day or at night haha. ## What does the peanut butter soft serve taste like? On this visit to Mellows, I ordered soft serve again, as always. I chose the peanut butter soft serve, which had savory peanut butter and crushed nuts on top of milk soft serve, plus a long stick cookie — it looked pretty cute from the start haha. ![Peanut butter soft serve topped with nuts and a cookie stick](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-15-3dmb6-966.webp) The ice cream itself is smooth with a rich milk flavor, and the peanut butter really brings out a savory, nutty note. The nuts you bite into here and there also kept the texture from being one-note lol. It's not just a sweet dessert — the nutty flavor comes through too, so it paired well with coffee for me personally. Back when I first visited Mellows, the ice cream was also the most memorable part, and it was just as satisfying this time haha. ![Close-up of the peanut butter soft serve](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-16-wxe36-966.webp) ## Peanut butter soft serve with an iced latte: the best pairing I ordered my drink iced too, to have alongside the soft serve. The smooth latte-style coffee and the nutty peanut butter ice cream went together better than I expected haha. ![Peanut butter soft serve served alongside an iced latte](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-17-b185x-966.webp) Take a bite of ice cream, then a sip of cold coffee, and your mouth feels refreshed — so you end up alternating between the two lol. On top of that, coffee priced in the ₩2,000–3,000 range in Seongsu felt pretty appealing. These days, walking into a Seongsu café often means a pricey drink, but Mellows was relatively easy on the wallet. ## Is Mellows worth a second visit at night? Since this was a repeat visit, I got to look around the space a bit more leisurely than the first time, and I liked Mellows at night quite a lot too. Sitting under the warm lighting with coffee and ice cream gave off a different vibe from the bustling main streets of Seongsu haha. ![A table at Mellows under warm lighting](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-18-zc1l5-m-966.webp) ![Mellows' interior atmosphere at nighttime](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-19-xnt3e-966.webp) ![A wall at Mellows showing projected video](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-20-1m423-966.webp) You could come for just a light coffee, or for the sweet soft serve, and later in the evening it's also a fine spot for a cocktail or highball. If you're looking for a Seongsu café, a Ttukseom café, or a Seongsu dessert spot and you happen to love soft serve too, this place is worth a visit lol. ![Mellows' outdoor seating with the Seongsu alley at night](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-21-19z9u-966.webp) ![Mellows' entrance lit up at night](https://img.superchart.com/images/mellowz-seongsu-night-peanut-butter-soft/mellowz-seongsu-night-peanut-butter-soft-22-12n6l-966.webp) If I come back again, I'd like to try one of the other soft serve flavors I haven't had yet, or maybe one of the evening cocktails. The day and night atmospheres are different enough that it's fun to revisit Mellows at a different time of day 😊 ## Where it is - Mellows (멜로우즈) - 7 Wangsimni-ro 10-gil, Seongdong-gu, Seoul, South Korea (1st floor) - 서울특별시 성동구 왕십리로10길 7 1층 - 37.5469646, 127.0455556 - Google Maps: https://www.google.com/maps/search/%EB%A9%9C%EB%A1%9C%EC%9A%B0%EC%A6%88/@37.5469646,127.0455556,17z --- Superchart · https://superchart.com/en/@weekend-cafe-circuit/mellowz-seongsu-night-peanut-butter-soft/ · https://superchart.com/llms.txt