From Kaifeng, Henan.
Pin · Kaifeng (Song Bianjing) · city
- OriginKaifeng · Central Plains · city · Han
灌汤包guàntāngbāo
Anatomy

Not known yet We don’t yet have a written story, a recipe or a dated or primary source for Kaifeng guantang bao. What we do have is below, with its sources.
Range
From Kaifeng, Henan.
Pin · Kaifeng (Song Bianjing) · city
How sure we are
Reasonably sure. Reference works agree, but we have not yet found a dated or primary source.
The grade comes from the project's source report and has not yet been checked source by source. How grading works.
First record Tangbao first appeared in Song Bianjing/Kaifeng (S, no year or text cited)
Soup-filled-bun techniques developed in Kaifeng (Wikipedia, G). Claimed ancestor of xiaolongbao.
This entry is drawn from the World Dumpling Atlas, §6.1, the project's source report. Its grade, S secondary consensus, says how far that has been checked against a primary source.
History sources are from the atlas and not yet independently checked.
Family A