Air Fryer Korean Sweet Potato (Goguma)
Roast whole Korean sweet potatoes at 380°F for 32-35 minutes, flipping after 20 minutes. Check that a knife slides into the center easily; larger potatoes may need longer.
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Allow 32-35 minutes of air frying, plus preparation. Potato size affects cooking time; use the tenderness check in the method.
Method
- 1
Scrub sweet potatoes clean and poke several holes with a fork. Rub skins lightly with oil.
- 2
Place sweet potatoes in the air fryer basket. Air fry at 380°F for 20 minutes.
- 3
Flip sweet potatoes and air fry for another 12-15 minutes until a knife slides in with no resistance and the skin is blistered.
- 4
Split open and serve with butter, honey, sea salt, or enjoy plain as Koreans traditionally do.
Pro tip. Korean sweet potatoes (goguma) have a drier, chestnut-like flesh compared to American varieties — they caramelize intensely in the air fryer. Japanese sweet potatoes are the closest substitute.
Why the air fryer wins here
- Fast-moving hot air browns the outside before the inside dries out, so you get color without babysitting.
- Cleanup is a basket, not a sheet pan and a splattered stovetop.
Storing and reheating
Refrigerate perishable leftovers within 2 hours, or within 1 hour above 90°F. Reheat leftovers to 165°F (74°C) throughout, measured with a food thermometer. USDA leftover safety guidance.
Keep leftovers in the fridge for up to 3 days. Reheat in the air fryer at 350°F for 3-5 minutes rather than the microwave so the outside crisps back up. See the reheat guide for exact times by food.
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