Korean Fried Sweet Potato
Quick answer
- Total time
- 20 min
- Level
- Easy
- Servings
- 2 servings
- Ingredients
- 5
About this dish
Goguma-twigim is a beloved Korean street snack found at tteokbokki stalls and bunsik shops across the country.
Read more
Sweet potato rounds sliced to 0.5 cm are coated in a light batter and fried at 170 degrees Celsius until the crust turns crisp and golden. Ice-cold water mixed into the batter is the essential technique here: low temperature slows gluten development, keeping the coating thin and delicate so it does not overpower the natural flavor of the potato beneath. The moment the rounds come out of the oil, the heat has concentrated the sweet potato's inherent sugars just inside the shell, and a light sprinkle of salt at serving sharpens that sweetness into something more vivid. This humble snack has remained a fixture of Korean street food culture for generations, enjoyed equally by children and adults.
Ingredients
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Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Prep
Slice 2 sweet potatoes into even 0.5 cm rounds.
Keep the pieces as similar as possible, because thick slices will stay firm while thinner ones brown too quickly in the oil.
- 2Prep
Pour 150 ml cold water into 100 g tempura batter mix and stir lightly.
Stop while a few small lumps remain, because overmixing makes the coating heavier and less crisp.
- 3Control
Pour 500 ml oil into a pot and heat it over medium heat to 170 degrees Celsius.
If a drop of batter sinks briefly and rises right back up, the oil is ready.
- 4Heat
Dip the sweet potato rounds in the batter and coat both sides thinly.
Let excess batter drip off before frying, so the crust stays light instead of turning thick and oily.
- 5Heat
Add the coated rounds without overlapping and fry for 3 to 4 minutes.
Turn them once halfway through, then lift them out when the coating turns pale golden and crisp.
- 6Finish
Check that a chopstick slides easily into the sweet potato, then drain the pieces well.
Sprinkle evenly with 0.5 tsp salt and serve right away while the coating is still crisp.
Practical Cooking Checks
The cues that matter most while cooking.
- Key technique
- Goguma-twigim uses 5mm sweet potato rounds encased in a light, crisp tempura batter.
- Finish cue
- Turn them once halfway through, then lift them out when the coating turns pale golden and crisp.
Cooking decision evidence
Calculated Charim data and applicable official cooking and food safety guidance.
This recipe
20min, 5 ingredients
Category median
30min, 8 ingredients
Based on 109 recipes
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