Street Food · Season 26 · Season of Winter IV

Gun-goguma

Gun-goguma (Roasted Sweet Potato) · 군고구마

Difficulty: Easy
Time to plan: 60 min
Serves: 4 pieces
Recipe: 5 steps
Listed places: 2

Decision notes · editorial comparison of references and preparation plans

Will differently sized sweet potatoes finish together?

Group similar thicknesses in our preparation. Unlike a pressed pancake, a whole sweet potato’s distance to the center changes the cooking task.

Check before ordering or preparing: Check variety, thickness, whole or cut preparation and appliance directions. Listed times are not measured test results.

Maangchi describes roasted sweet potato as a Korean street food. The size and timing advice below belongs to our preparation plan. Maangchi · Sweet potatoes · 2026-09-13

Alternative to compare: Hotteok (Sweet Filled Pancake)Make an order card Prepare this version

Food notes and context

Roasted sweet potato cooks the tuber in its skin until the center is done. This method starts with similarly sized potatoes rather than assuming different thicknesses finish simultaneously.

Record variety and size and check the center’s texture to guide the next batch. Compare the skin and surface with a boiled or steamed potato, and let the hot interior cool before eating.

Cook this version

Images are AI-generated illustrations, not records of a kitchen test. Follow the written ingredients and steps. Ingredients and substitutions guide

Times and yields are planning values for this editorial preparation, not measured kitchen results. Substitutions can change flavor, texture and cooking needs. Read product directions and our measurement and doneness guide together.

Ingredients (4 pieces)

Ingredient	Amount	Substitute abroad
Sweet potatoes (chestnut or pumpkin type)	4	Purple sweet potato (less sweet)
Dongchimi (side)	One bowl	Milk, kimchi
Foil (for oven)	As needed	Air fryer needs none

Step by step

1.Choose the potatoes
Pick evenly sized medium potatoes and wash.
2.Record condition and size
Use undamaged potatoes without mold or soft decay and note variety and thickness. Storage age alone does not guarantee sweetness or quality.
3.Roast slow
Preheat the oven to 200°C and roast. Fifty minutes is a planning estimate for medium potatoes; start checking the center at 40 minutes and continue if firm. Thickness and ovens change the timing.
4.Test for doneness
Test the thickest part for a tender center. Seeping syrup and charred skin are not required signs of doneness.
5.Break and share
Break in half while hot, steam rising, and serve with dongchimi.

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Pieces wanted (1–20)

Text to take with you

군고구마 · Gun-goguma · Gun-goguma (Roasted Sweet Potato)

1개를 사고 싶어요. 낱개 판매가 가능한가요? 묶음으로 판다면 한 묶음의 개수와 가격을 알려 주세요. / I would like 1 piece. Can I buy them individually? If sold in a set, how many pieces are in it and what does it cost?

속재료·고물·소스는 무엇인가요? 선택하거나 따로 받을 수 있나요? / What fillings, toppings or sauces are used? Can I choose them or have them separately?

바로 먹거나 포장할 수 있나요? 포장 비용이 있나요? / Can I eat it now or take it away? Is there a packaging charge?

Check variety, thickness, whole or cut preparation and appliance directions. Listed times are not measured test results.

If you have ingredient restrictions, name them and ask about sauces, toppings and preparation equipment. The seller must confirm whether changes are possible.

https://k-roastmysoul.com/en/foods/gungoguma

Measurement, doneness and storage references

Make your cooking notes

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Your notes

Places to check when planning a meal

Candidates to investigate for this food. Maps use sourced location records; confirm the current menu, opening and booking directly. This list is not a tasting review or an award certification.

Haenam Sweet Potato Fields

Haenam, South Jeolla

Exact current location is not verified here. Confirm the venue through its official information before planning a visit.

Winter Drum-Barrel Stalls

Nationwide

Exact current location is not verified here. Confirm the venue through its official information before planning a visit.

The fictional face of this dish

Earth element · a round, full face

No fancy technique: you draw out sweetness with nothing but time and fire. A face like a drum-barrel sweet potato on a winter night.

Upright: Rush it on high heat and only the skin burns; bed it in gentle embers and the inside turns to honey. Your work is roasting in the drum right now. Resist, just for today, the urge to lift the lid and poke.

Reversed: You nearly threw it out for its blackened skin, did you not? The truth of gun-goguma: the more charred the skin, the sweeter the flesh. Do not discard people or opportunities on the grounds of a scorched exterior.

The K-Roast take: Grandma's roast

Fictional food metaphors inspired by traditional face-reading, not measurements of your face or personality.

That gaze glows steady as banked embers: a long-burning eye. A sweet potato vendor's fire never blazes; it smolders through the night. Your passion is that ember fire, no explosions but never going out. When the flash-burners have turned to ash, you will still be roasting, child.

Those sturdy cheeks carry the blessing of soil. What kind of crop is the sweet potato? It fattens on barren fields by itself and stood as the famine pillar that carried Joseon through lean years. Your fortune is that potato, thickening in rough fields rather than glass greenhouses. Do not curse your rough plot now: roots gather their sweetness in hard ground.

That mouth has the warmth of blowing on hot food before sharing: a divider's mouth. The roasted sweet potato peaks at the moment it is broken in two, steam rising, golden flesh open, and the first half traveling to the hand beside you. Your mouth's luck comes from that half. Eaten alone it sticks in the throat; shared, it goes down like a song.

The sweet potato is dug before the frost and sweetens all winter in storage. However humble your last harvest looked, its sugar is rising in the storehouse now. The deeper the winter, the more to expect of your sweetness.
Grandma's blessing

Table compatibility

Hot dense sweet potato and icy dongchimi brine are the national formula for un-sticking a choked throat, while summer mulhoe shares no season with this snack and the two know each other by rumor alone, for life.