Gil-gamja are one of those Korean street foods that make you question why regular french fries even exist. (Just playing!) The outside is golden and crispy. The inside is stretchy and chewy, almost like mochi. The secret is tapioca starch mixed into a real potato base, which gives them that addictive pull that keeps you reaching for one more.

These went viral on TikTok for a reason. They look impressive, they taste incredible, and they take about 30 minutes from start to finish. No special equipment needed beyond a blender and a piping bag.

The sriracha-mayo dipping sauce is optional but strongly recommended. The sweetness from the plum syrup balances the heat perfectly.

Ingredients

  • 400g peeled potato
  • 130g water
  • ½ tsp salt
  • 100g tapioca starch
  • Neutral oil for deep frying

Dipping sauce:

  • 2 tbsp mayonnaise (30g)
  • 1 tbsp sriracha (15g)
  • 1 tbsp plum syrup (20g)

📷 INSERT PHOTO: Ingredients laid out

Singapore Swap

  • Tapioca starch: Available at FairPrice, Sheng Siong, or any baking supply shop. Rose brand or Bob's Red Mill both work.
  • Plum syrup (maesil-cheong): Korean marts on Tanjong Pagar or Don Don Donki. If you cannot find it, substitute with honey and a squeeze of lemon.
  • Sriracha: Huy Fong (rooster bottle) from any supermarket. Samyang hot sauce works too if you want it spicier.

Instructions

1. Blend the potatoes

Combine peeled potatoes and water in a blender. Blend until completely smooth with no lumps. This is the base of your dough, so take the time to get it smooth.

2. Microwave and stir

Pour the mixture into a microwave-safe bowl. Microwave for 5 minutes total, but stop every 30 seconds to stir thoroughly. This constant stirring is what creates the chewy texture. Do not skip this step. By the end, the mixture should be thick and paste-like.

📷 INSERT PHOTO: Thick potato paste after microwaving

3. Add starch and form the dough

Transfer the thickened potato paste to a mixing bowl. Add salt and tapioca starch. Mix until it forms a thick, stretchy dough. It should feel slightly sticky but hold its shape.

4. Pipe into oil

Scoop the dough into a piping bag. Heat neutral oil in a deep pan to around 170-180°C. Pipe the dough directly into the hot oil in short strips, about 8-10cm each. Fry only a few at a time to prevent them from sticking together.

5. Fry until golden

Fry until each piece turns golden brown, roughly the colour of a crispy hash brown. This takes about 3-4 minutes per batch. Remove and drain on paper towels.

📷 INSERT PHOTO: Golden fried gil-gamja draining

6. Make the dipping sauce

Mix mayonnaise, sriracha, and plum syrup until smooth. Adjust the sriracha to your heat preference.

📷 INSERT PHOTO: Finished gil-gamja with dipping sauce

Tips

  • The stirring every 30 seconds is non-negotiable. It creates the chewiness. Skip it and you get regular mashed potato.
  • If you do not have a piping bag, cut the corner off a ziplock bag. Works the same way.
  • These are best eaten immediately. The crispiness fades after 15-20 minutes. Do not try to reheat them.
  • Oil temperature matters. Too hot and they burn outside while staying raw inside. Too cool and they absorb oil and get greasy.