Roasted sweet potato
Alternative namesGun-goguma, kǎo-báishǔ, haau-faansyu, yaki-imo
Place of originEast Asia (China, Japan, Korea, Vietnam)
Main ingredientsSweet potatoes
Similar dishesRoasted chestnut
Regional names
Chinese name (northern China)
Literal meaning"roasted sweet potato"
Alternative Chinese name
Literal meaning"roasted sweet potato"
Cantonese name
Vietnamese name
Vietnamesekhoai lang nướng
Japanese name

Roasted sweet potato is a popular winter street food in East Asia.[1]

China, Hong Kong, and Taiwan

In China, yellow-fleshed sweet potatoes are roasted in a large iron drum and sold as street food during winter.[2] 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; "roasted sweet potato") in Taiwan and Northeast China, as the name of sweet potatoes themselves vary across the sinophone world.


Sweet potatoes roasted in drum cans, called gun-goguma (군고구마; "roasted sweet potato"), are also popular in both North and South Korea.[3][4] The food is sold from late autumn to winter by the 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.[5]

In South Korea, roasted sweet potatoes are dried to make gun-goguma-mallaengi (군고구마 말랭이), and frozen to make ice-gun-goguma (아이스 군고구마).[6] Although gun-goguma has traditionally been a winter food, gun-goguma ice cream and gun-goguma smoothie are nowadays enjoyed in summer.[7]


In Japan, similar street food is called ishi yaki-imo (石焼き芋; "roasted sweet potato in heat stones") and sold from trucks during the winter.[8]

Northern Vietnam

Roasted sweet potatoes (khoai lang nướng) is also a popular street food in Hanoi and Northern Vietnam in winter.[9]


In 2010, an emoji was approved for Unicode 6.0 U+1F360 🍠 ROASTED SWEET POTATO for "roasted sweet potato".[10]

See also


  1. ^ Maiti, R.; Rodríguez, H.G.; Sarkar, N.C. (2017). WORLD VEGETABLE AND TUBER CROPS. 1st. American Academic Press. p. 504. ISBN 978-1-63181-868-4. Retrieved 4 April 2022.
  2. ^ Wilson, Audrey (2016-11-15). "Let's Talk Food: Is there a difference between sweet potatoes and yams?". Hawaii Tribune-Herald. Archived from the original on 2017-02-21. Retrieved 2017-02-09.
  3. ^ Carruth, David (2016-11-28). "10 Korean Winter Street Foods To Bear The Cold For". 10 Magazine. Retrieved 2017-02-09.
  4. ^ Guttenfelder, David (2011-07-26). "North Korea food shortage worst in years, despite farms". USA Today. Associated Press. Retrieved 2017-02-09.
  5. ^ Shin, Mi-Young & Lee, Won-Young (2011). "Physical Properties and Preference of a Steamed Sweet Potato Slab after Mild Hot Air Drying". Korean Journal of Food and Cookery Science (in Korean). 27 (2): 73–81. doi:10.9724/kfcs.2011.27.2.073.
  6. ^ 최현주 (2017-02-01). "작년엔 바나나 열풍, 올해는 고구마 바람" [Banana fever last year, sweet potato this year]. JoongAng Ilbo (in Korean). Retrieved 2017-02-12.
  7. ^ "겨울 별미 군고구마? 여름 간식 급부상" [Winter delicacy roasted sweet potato? Summer snacks]. The Korean Farmers and Fishermen's Newspaper (in Korean). No. 2736. Seoul. 2015-07-14. Retrieved 2017-02-12.
  8. ^ Lyon, Peter (2016-12-22). "These Japanese Hot Potato Trucks Are Delicious But Could Be Deadly". Forbes. Retrieved 2017-02-09.
  9. ^ "Khoai nướng Hà Nội ăm ắp kỷ niệm ngọt ngào" [Sweet memories with roasted sweet potatoes in hanoi]. Thanh Niên (in Vietnamese). 2021-08-29. Retrieved 2022-11-24.
  10. ^ "roasted sweet potato". November 2019.