One Dim Sum: Where to Eat in Mong Kok (4.3★)
✓ Facts verified via Google Places · Aug 19, 2026
At a glance
Opening hours
- Monday: 9:30 AM – 11:00 PM
- Tuesday: 9:30 AM – 11:00 PM
- Wednesday: 9:30 AM – 11:00 PM
- Thursday: 9:30 AM – 11:00 PM
- Friday: 9:30 AM – 11:00 PM
- Saturday: 9:00 AM – 11:00 PM
- Sunday: 9:00 AM – 11:00 PM
Live foot-traffic data via BestTime.app
How this guide is made
Produced with AI assistance and reviewed against live data sources. Facts such as hours, ratings, and location come from Google Places; images are licensed or public domain. Details can change — please verify before visiting. Editorial policy
How this guide was made: Editor-reviewed, AI-assisted. Facts are pulled from live Google Places data; images are licensed or public domain. See our editorial policy.
Why go
You come to One Dim Sum for proof that great dim sum doesn’t need chandeliers. This is a narrow, fluorescent-lit shop on Tung Choi Street, closer to Prince Edward than central Mong Kok, and it’s spent years on Michelin’s radar for exactly this kind of no-frills cooking. The har gow arrive translucent-skinned and tightly pleated. The baked BBQ pork buns come out glazed and faintly sweet, still warm enough to fog the little paper bag they’re slid into.
Getting there
Take the MTR to Prince Edward Station and leave via Exit B2. From there it’s a five-minute walk south down Tung Choi Street, the same street known further down as the “Goldfish Market” for its rows of aquarium shops. One Dim Sum sits at street level, G/F 209A, with a simple signboard and a window onto the kitchen. If you’re coming from the Ladies’ Market end of Mong Kok, it’s a 10-15 minute walk north.
What to eat
The menu is a paper checklist you tick with a pencil, ordered by the plate — most dishes land in the budget-to-mid-range bracket for Hong Kong dim sum. Don’t overthink it; the kitchen’s reputation rests on a handful of dishes.
- Baked BBQ pork buns (char siu bao) — the signature order, sweet-glazed and flaky
- Har gow (shrimp dumplings) — thin-skinned, plump with whole shrimp
- Siu mai (pork and shrimp dumplings) — dense, savory, a good contrast plate
- Rice noodle rolls (cheung fun) — silky, usually with shrimp or beef
- Turnip cake (law bak go) — pan-fried, a good textural break from the steamed items
Portions are small-plate style, so a table of two or three can reasonably order five or six dishes and still have room for dessert.
When to go
Crowd patterns here are predictable and worth planning around. On weekdays, things stay manageable from 10am right through to closing at 11pm. Weekends are calmer only very early, from 9am, before the crowds build.
The one window to actively avoid is Saturday or Sunday between 11am and 8pm — that’s peak lunch-into-dinner traffic, and the shop is small enough that a short wait can stretch long. If you’re set on a weekend visit, arrive right at 9am opening or hold off until after 8pm.
The setting
Inside, it’s tight: a handful of tables, a service counter, and an open view into the kitchen where woks and steamers work continuously. It’s not a place to linger over tea for hours — turnover is fast, staff are efficient rather than chatty, and the energy is closer to a well-run canteen than a sit-down restaurant. That’s part of the appeal. You’re here for the food arriving hot and fast, not the ambiance.
How to visit like a local
One Dim Sum is well known — it draws long queues and regularly makes best-of lists, so don’t expect a quiet, undiscovered find. The smart move is beating the crowd rather than hoping to avoid it entirely.
- Time it right: weekday mornings from opening, or after 8pm any day, are your calmest bets
- Ordering: you’ll get a checklist and pencil — tick quantities directly, no need to flag a server repeatedly
- Payment: cash is safest to have on hand, though many Hong Kong dim sum spots now take cards; don’t assume mobile payment is universal here
- Queue etiquette: if there’s a line, staff usually take your party size and seat you as tables turn — don’t hover by occupied tables
- Tipping: not expected beyond any service charge already added to the bill
- The mistake to avoid: over-ordering. Dishes come fast and in multiples (siu mai and har gow are typically 3-4 pieces per order), so pace your ticks if you’re a small group
Plan on 30-45 minutes for a solid round of dishes — this isn’t a leisurely brunch spot, and the turnover pace rewards visitors who eat efficiently and move on.
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Frequently asked questions
How do I get to One Dim Sum?
Take the MTR to Prince Edward Station, leave via Exit B2, and walk about five minutes south down Tung Choi Street. It's at street level, G/F 209A.
When is the quietest time to visit?
Weekdays it's manageable from 10am to closing at 11pm. On weekends, the calmest window is right at 9am opening — avoid 11am to 8pm, when queues are longest.
Is One Dim Sum expensive?
No — it sits in the budget-to-mid-range bracket for Hong Kong dim sum, with small individual plates that make it easy to order several dishes without a big bill.
Do I need a reservation?
It's a walk-in, queue-based system rather than a reservations restaurant. Arriving right at opening or after 8pm is the best way to minimize waiting.
What should I order first?
Start with the baked BBQ pork buns, the shop's signature dish, alongside har gow and siu mai for a classic first round.