Roasted sweet potato is a popular winter street food in East Asia and parts of Southeast Asia.
Regions
China, Hong Kong, and Taiwan
In
China, yellow-fleshed
are roasted in a large iron drum and sold as
street food during winter.
They are called
kǎo-báishǔ (烤白薯; "roasted sweet potato") in northern China,
wui faan syu (煨番薯) in Cantonese-speaking regions, and
kǎo-dìguā (烤地瓜) in
Taiwan and
Northeast China, as the name of sweet potatoes themselves varies across the
sinophone world.
Korea
Sweet potatoes roasted in drum cans, called
gun-goguma (군고구마), are popular in both
North Korea and
South Korea.
The food is sold from late autumn to winter by vendors wearing
ushanka, which is sometimes referred to as "roasted sweet potato vendor hat" or "roasted chestnut vendor hat". Although any type of
goguma (sweet potato) can be roasted, softer, moist varieties such as
hobak-goguma (pumpkin sweet potato) are preferred over firmer, floury varieties such as
bam-goguma ("chestnut sweet potato") for roasting.
In South Korea, roasted sweet potatoes are dried to make gun-goguma-mallaengi (군고구마 말랭이) and frozen to make ice- gun-goguma (아이스 군고구마).
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