identity
Kosuko’s December 2011 review describes a crisp surface, chewy bread and a densely filled center, served wrapped in foil. The author compares its flavor with Costco’s marinated retail beef, but an official recipe match has not been established. [2]
history
A menu photographed in Japan on September 10, 2007 already names both spicy pork bake and bulgogi bake on a shared ¥399 panel. A separate photograph from the same album shows the opened bulgogi bake. The warehouse is not identified, so this establishes an earlier Japanese sighting without fixing a launch date. [9] [10]
The item appears beside chicken bake on a Kawasaki menu photographed for an article published in February 2011. Two further tastings followed that December, from GIGAZINE and Costcotuu. This is a documented Japanese history independent of the later retirement reported for Korea; a Korean removal date does not establish a Japanese removal. [1] [3] [2]
The filling changed over time. In October 2016, Kosuko described a revised version as softer and sweeter, linking it to a change that August. This is a diner’s account of the revision, without a verified nationwide rollout date. [5]
By Kosuko’s October 2024 review, a jumbo bake had replaced the standard version described that September. The sign advertised 30% more meat; that claim does not establish a measured increase in every serving. [7] [6]
nutrition
A serving-specific official Japanese calorie total and weight have not been verified. Descriptions of a substantial meat filling are useful tasting evidence, but cannot be converted into grams or nutrition. The retail marinated-beef pack and the food-court bake are different purchase formats. [2]
Kosuko measured one jumbo bake at 392 g and 26 cm. These are a diner’s measurements of a single serving, not an official nutrition basis; they do not establish its calories. [7]
No serving-specific nutrition verified.
prices
distinctions
Kosuko initially hesitated because of the seasoned beef and the price compared with a hot dog. After tasting, the author praised the filling and its interaction with the bread, finding it more substantial than an ordinary snack. That is one diner’s change of opinion, not a popularity survey. [2]
The jumbo version prompted a mixed response: Kosuko enjoyed the flavor but felt the extra filling overwhelmed the bread. That comparison helps explain a change in the eating experience without treating a larger portion as a separate food family. [7]
The 2007 photographer preferred the bulgogi bake to the American chicken bake. That early personal reaction sits alongside the later named tastings; it is not evidence that every diner agreed. [10]
Local evidence
Price observations
- 400 JPY(≈ $2.52 USD) · One bake · Kawasaki Costco · report published 2011-02-18; sale date unknown. Historical source observation; not a current offer. [1]
- 400 JPY(≈ $2.52 USD) · One bake · Japan, historical records · report published 2011-12-11; sale date unknown. Historical source observation; not a current offer. [2]
- 420 JPY(≈ $2.65 USD) · One bake · Japan, historical records · report published 2016; sale date unknown. The source gives the year of this historical price, without a month or day. [2]
- 400 JPY(≈ $2.52 USD) · One bake · Kyoto Yawata Costco, linked opening-day reporting · report published 2011-12-09; sale date unknown. Historical report; not a current offer. [3] [4]
- 420 JPY(≈ $2.65 USD) · One standard bulgogi bake · Japan, historical records · report published 2016-10-08; sale date unknown. Historical report; not a current offer. [5]
- 680 JPY(≈ $4.29 USD) · One standard bulgogi bake · Japan, historical records · report published 2024-01; sale date unknown. Historical report; not a current offer. Date is month-only. [5]
- 680 JPY(≈ $4.29 USD) · One standard bulgogi bake, item 517104 · Japan, historical records · report published 2024-09-18; sale date unknown. Historical report; not a current offer. [6]
- 880 JPY(≈ $5.55 USD) · One jumbo bulgogi bake, item 68430 · Japan, historical records · report published 2024-10; sale date unknown. Historical report; not a current offer. Date is month-only. [7]
- 880 JPY(≈ $5.55 USD) · One jumbo bulgogi bake, takeaway · Hisayama Costco · report published 2025-01-17; sale date unknown. Historical report; not a current offer. [8]
- 399 JPY(≈ $2.52 USD) · One bulgogi bake; standardportionweightunknown · Japan, warehouse unspecified in 2007 album · date not established. Observed_on uses photograph Takenondate, not upload. Contracthasno menuobservationenum. Taxincludedprinted. Notcurrentnationalprice. [9]
Nutrition observations
Read the scoped nutrition table and source limits in Nutrition ↑
Last checked 2026-10-11 UTC. A listing is not a live stock check.
Sources & photo rights
The three early records establish the item’s presence and texture without establishing its origin. The later price annotation supplies a second period. Current availability, official nutrition and permission to reproduce an exact serving photograph require further work. [1] [2] [3]
GIGAZINE places this visit within its Kyoto Yawata opening-day series. The warehouse report explicitly leads into the food-court coverage; that linked reporting supplies the location. [4]
CharleyMarley's September 2007 album adds an earlier photographed menu. Its capture and upload dates remain separate. The images retain copyright and are evidence links only, without permission for reproduction. [9]
- 1. Costco Japan: Kawasaki visit Open original source
Danny Choo · Published 2011-02-18 · Checked 2026-10-01 UTC. The rightmost labels are too small to read reliably. The exact visit date and permission to reproduce the photograph are unknown.
Supporting section
Original article body, item price and description
- 2. Bulgogi bake tasting Open original source
Costcotuu / コス子 · Published 2011-12-11 · Checked 2026-10-01 UTC. Updated August 4, 2016. A mention of Hisayama concerns retail meat and does not clearly locate this food-court tasting. A shared recipe with the retail meat is unconfirmed.
Supporting section
Original article body, item price and description
- 3. Costco food-court tasting Open original source
GIGAZINE · Published 2011-12-09 · Checked 2026-10-01 UTC. The tasting does not explicitly name its warehouse. Related coverage of Kyoto Yawata is insufficient to assign this meal to that store.
Supporting section
Original article body, item price and description
- 4. Kyoto Yawata opening-day warehouse report and explicit food-court continuation Open original source
GIGAZINE · Published 2011-12-09 · Checked 2026-10-10 UTC. Geographic attribution through the publication sequence, not a repeated explicit warehouse label in every installment. Retail deli prices are excluded.
Supporting section
Original author body; comments excluded unless source is explicitly a forum observation.
- 5. Bulgogi bake after the 2016 revision Open original source
Costcotuu / Kosuko · Published 2016-10-08 · Checked 2026-10-10 UTC. Exact warehouse not identified. Recipe/kiwi mechanism is author interpretation, not operator ingredient or allergen certification.
Supporting section
Original author body; comments excluded unless source is explicitly a forum observation.
- 6. Standard bulgogi bake review, September 2024 Open original source
Costcotuu / Kosuko · Published 2024-09-18 · Checked 2026-10-10 UTC. Warehouse and exact purchase day unspecified. Author comments about longevity are not a launch date.
Supporting section
Original author body; comments excluded unless source is explicitly a forum observation.
- 7. Jumbo bulgogi bake comparison Open original source
Costcotuu / Kosuko · Published 2024-10-09 · Checked 2026-10-10 UTC. Warehouse unspecified. Firsthand measurement is one serving, not official nutrition basis. Replacement report not an exact national withdrawal/launch date. All Rights Reserved; photographs not cleared.
Supporting section
Original author body; comments excluded unless source is explicitly a forum observation.
- 8. Hisayama January 17, 2025 takeaway menu observation Open original source
Costcotuu forum / 土日は北九州 · Published 2025-01-18 · Checked 2026-10-10 UTC. User report, not operator-issued menu; visit January 17 differs from January 18 posting. Prices explicitly takeaway. No image or current stock claim.
Supporting section
Original author body; comments excluded unless source is explicitly a forum observation.
- 9. Costco Japan Menu, September2007 Open original source
CharleyMarley · Published 2007-09-22 · Checked 2026-10-11 UTC. Exactwarehouse/servingweightunknown. Rightsreserved, ownerdisabledownload; onlydisplayedpixelsinspected.
Supporting section
TakenSeptember10/uploadSeptember22,2007; original3Kdisplay centralpanels
- 10. Bulgogi Bake @ Costco Japan Open original source
CharleyMarley · Published 2007-09-21 · Checked 2026-10-11 UTC. Countryonly, no exactwarehouse. AllRightsReserved; no reusepermission.
Supporting section
TakenSeptember10/uploadSeptember21,2007,captionandactualpixels