Korean Potato Pancakes (Gamja-Jeon) with Spicy Cucumber Salad
That distinct sizzle of shredded potatoes hitting the hot oil is your signal for pure comfort. These Korean potato pancakes contrast a deeply golden, crispy crust with a tender, slightly chewy interior, balanced by the bright snap of a chilled, spicy red pepper cucumber salad.Instead of relying on store-bought flour or extra binders, this recipe relies on culinary precision. By extracting the natural starch settling at the bottom of the potato liquid and folding it back into the pulp, you get an exceptionally crisp edge and cohesive texture without diluting the rich potato flavour. Servings: 2 large (8-inch) pancakes or 6 to 8 small pancakes (Serves 4 as a side)
Ingredients
➡️Note on Scaling the Recipe: When scaling to 2X or 3X, the light grey ingredient notes and the instructions remain unchanged. Please adjust as needed.
Gamja-jeon (Potato Pancakes)
- 1½ lb Ontario Russet potatoes 680 g, peeled weight
- ¾ teaspoon fine sea salt
- 2 scallions thinly sliced on a long diagonal, divided
- 6 tablespoon neutral vegetable or avocado oil, divided 90 ml
- 1 teaspoon toasted sesame seeds for finishing. We used both white and black seeds.
- fresh red chili thinly sliced for finishing
Spicy Cucumber Salad
- 1 English cucumber about 10 to 12 oz (285 to 340 g)
- ¾ teaspoon fine sea salt for salting cucumber
- 2 teaspoon fine Korean red pepper powder Gochugaru
- 1 tablespoon rice vinegar 15 ml
- 1½ teaspoon low-sodium soy sauce 7.5 ml
- 1 teaspoon granulated sugar
- 1 teaspoon toasted sesame oil 5 ml
- 1 small garlic clove finely grated
- 1 scallion thinly sliced
- 1 small fresh red chili very thinly sliced, or a hot pepper of your choice
- 1 teaspoon toasted sesame seeds We used both white and black seeds.
Soy-Vinegar Dipping Sauce
- 2 tablespoon low-sodium soy sauce 30 ml
- 1½ tablespoon rice vinegar 22.5 ml
- 1 tablespoon water 15 ml
- ½ teaspoon fine Korean red pepper powder Gochugaru
- ½ to 1 small fresh red chili very thinly sliced
- 1 teaspoon finely sliced scallion
- ½ teaspoon toasted sesame seeds We used both white and black seeds.
Instructions
Grate and Drain the Potatoes
- Grate the peeled Russet potatoes using a box grater. Shred half using the fine shredding holes for a cohesive, tender binder, and half using the coarse shredding holes for distinct texture and maximum surface crispness.
- Immediately transfer the grated potatoes to a fine-mesh strainer set over a clear glass bowl. Press firmly on the pulp with the back of a spoon or silicone spatula to release freely draining liquid. Do not wring the potatoes completely dry.
- Transfer the drained potato pulp into a separate mixing bowl.
- Leave the collected potato liquid undisturbed in the glass bowl for 10 minutes. The dense white natural starch will separate and settle to the bottom.
Note: Slight surface discolouration of the potato pulp while sitting is natural and will not impact the final dish.
Prepare the Cucumber
- Slice the cucumber into ⅛ to ¼-inch rounds or slight diagonal slices.
- Place in a bowl, sprinkle with ¾ teaspoon fine sea salt, and toss to coat evenly. Let stand for 15 minutes to draw out excess moisture.
- Drain thoroughly in a colander. Do not rinse or squeeze the cucumber. Pat away remaining surface moisture gently using a paper towel.
Tip: Using a mandoline slicer guarantees uniform thickness so the cucumbers draw out moisture evenly, but a sharp chef's knife works well too.
Whisk the Cucumber Dressing
- In a small bowl or jar, whisk together the Korean red pepper powder, rice vinegar, soy sauce, sugar, sesame oil, and grated garlic.
- Set aside. Hold off on tossing the cucumbers into the dressing until right before serving to maintain crispness.
Prepare the Soy Vinegar Dipping Sauce
- In a small ramekin, stir together the soy sauce, rice vinegar, water, red pepper powder, sliced chili, scallion, and toasted sesame seeds.
- Set aside for at least 5 minutes to allow the flavours to combine.
Recover the Potato Starch and Form Batter
- Slowly pour off and discard the liquid from the glass bowl, keeping the thick layer of white starch settled at the bottom undisturbed.
- Add the grated potatoes to the bowl with the white starch.
- Add ¾ teaspoon salt and half of the sliced scallions. Mix thoroughly until cohesive and slightly sticky.
Note: Weigh the finished mixture on a digital scale and divide it equally into two portions (or 6 to 8 smaller portions). Or you can just eyeball it! 😉
Preheat Your Oven
- Place a wire rack inside a rimmed baking sheet and position it in the oven. Preheat your oven to 200°F (95°C).
Fry the Gamja-Jeon
- Heat a 9-inch nonstick skillet over medium-high heat. Add 2 tablespoons of oil and swirl to coat the bottom completely.
- For 2 Large Pancakes: Add half of the potato mixture to the skillet. Immediately press and spread it into a thin, uniform disk approximately 8 to 9 inches in diameter and under ¼ inch thick. For 6 to 8 Small Pancakes: Spoon 2 to 3 tablespoons of the potato mixture per pancake into the hot skillet, gently flattening each into a 3-inch disk (cook in batches of 3 or 4 to avoid overcrowding, using 1½ to 2 tablespoons of oil per batch).
- Cook for 2 minutes until the edges begin to set and sizzle briskly.
- Reduce heat to medium. Continue cooking for 2 to 3 minutes until the edges turn golden, the top loses its raw sheen, and the pancake releases cleanly when shaking the pan.
- Flipping Large Pancakes: Slide the large pancake onto a large flat plate. Place the inverted skillet over the plate and carefully flip them together, or flip using a wide spatula. Flipping Small Pancakes: Simply flip each pancake over using a standard flexible spatula.
- Drizzle 1 tablespoon of oil around the edges (or ½ tablespoon for small pancake batches), tilting the pan so it flows underneath.
- Cook for 3 to 4 minutes on medium heat, pressing down lightly with a spatula to ensure even contact.
- Flip once more and cook the original side for an additional 30 to 60 seconds to maximize crispness.
- Transfer the finished pancakes to the wire rack in the warm oven. Repeat the process with the remaining oil and batter.
Dress and Assemble
- Immediately before serving, toss the drained cucumbers, sliced scallion, and sliced red chili with the prepared salad dressing. Garnish with toasted sesame seeds.
- Slice the warm gamja-jeon into wedges and scatter the remaining scallions and sesame seeds over top.
- Serve hot alongside the spicy cucumber salad and soy-vinegar dipping sauce.
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Video
Notes
Tips, Substitutions & Serving Suggestions
- Potato Selection: High-starch potatoes like Russet potatoes are essential. Low-starch options like red or white wax potatoes will not yield enough natural starch to bind the pancakes without adding flour.
- Why Use Glass Bowls? Using a smooth glass bowl allows you to visibly check when the layer of starch has fully settled at the bottom before decanting the liquid.
- Small vs. Large Pancakes: While two large 8-inch pancakes offer a dramatic presentation, making 6 to 8 smaller pancakes (about 3 inches each) makes flipping simpler and maximizes crisp edge-to-center ratios.
- Gluten-Free Adaptation: The Gamja-jeon pancakes are naturally 100% gluten-free. To make the entire dish gluten-free, substitute the soy sauce in both the cucumber dressing and dipping sauce with Tamari or certified gluten-free soy sauce at a 1:1 ratio.
- Reheating Leftovers for Maximum Crunch: Avoid the microwave, which turns the center rubbery and softens the edges.
- Skillet Method (Best): Place cold pancake wedges into a dry nonstick or cast-iron skillet over medium heat. Heat for 2 to 3 minutes per side. The residual oil in the pancake will render out, restoring that shatter-crisp exterior.
- Air Fryer / Oven Method: Preheat an air fryer to 375°F (190°C) or an oven to 400°F (200°C). Heat the wedges on a wire rack for 4 to 6 minutes until sizzling and re-crisped.
- Make-Ahead & Storage Note: Prepare the cucumber dressing and dipping sauce up to a day in advance. The Spicy Cucumber Salad is best enjoyed fresh on the same day, as the cucumbers will lose their firm crunch after sitting in the dressing overnight. Do not grate the potatoes ahead of time; they must be processed and fried fresh to preserve colour and structural integrity.
Frequently Asked Questions
Q: Why are my potato pancakes mushy?
A: Mushy pancakes are usually caused by excess water retention or using low-starch potatoes. Pressing out freely draining water and utilizing the settled natural potato starch creates a firm matrix that crisps up in hot oil rather than steaming.
Q: Can I add flour or cornstarch to Gamja-jeon?
A: While traditional gamja-jeon relies solely on natural potato starch, adding 1 tablespoon of commercial potato starch or tapioca starch can help bind the batter if working with lower-starch potatoes.
Q: How do you keep Gamja-jeon warm while cooking batches?
A: Place cooked pancakes on a wire rack set inside a rimmed baking sheet in an oven set to 200°F (95°C). The wire rack allows hot air to circulate underneath, preventing condensation from softening the crisp bottom crust.
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