Korean Stuffed Cucumber Kimchi

Quick answer

Total time: 35 min
Level: Medium
Servings: 4 servings
Ingredients: 8

About this dish

Oi sobagi is a Korean stuffed cucumber kimchi made by salting whole cucumbers, cutting them crosswise to within a centimeter of the base to create four attached wedges, and packing the cavity with a filling of garlic chives, onion, gochugaru, anchovy fish sauce, and plum syrup.

When bitten, the cucumber's cool moisture meets the spicy, fragrant stuffing inside, releasing a burst of layered juice, and the firm crunch of the flesh contrasts cleanly with the softer chive filling. Salting for exactly thirty minutes is the critical window -- less time leaves the cucumber too firm to absorb the seasoning properly, while longer breaks down the cell structure and causes the flesh to go limp, which makes the stuffed pieces fall apart when cut. The filling ingredients should be mixed quickly without over-handling, because overworking the chives releases water and dilutes the seasoning. After stuffing, the cucumbers sit at room temperature for four hours to begin fermentation, then move to the refrigerator, where lactic acid development continues slowly overnight. By the second day the flavor is brighter and more complex with a distinct tangy edge. Cutting the portions just before serving, rather than in advance, keeps the flavorful interior juices from running out. Cucumbers of uniform thickness salt most evenly, and if substituting sugar for plum syrup, use a smaller quantity to keep the sweetness in check.

Ingredients

servings

IngredientAmountUnit

Korean cucumbers6 eaea

Coarse sea salt45 gg

Garlic chives120 gg

Onion70 gg

Korean chili flakes70 gg

Anchovy fish sauce55 mlml

Minced garlic18 gg

Green plum syrup20 mlml

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Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

6 steps

1

Season

Choose 6 cucumbers with similar thickness so they salt evenly.

Trim both ends, then cut each cucumber lengthwise into a cross, stopping about 1 cm from the base so the four sections stay attached.
2

Season

Rub 45 g coarse sea salt over the outside and inside the slits, then salt for exactly 30 minutes.

Turn the cucumbers once halfway through so the seasoning draws moisture evenly without making the flesh limp.
3

Season

Rinse the salted cucumbers briefly in cold water, just enough to remove surface salt.

Stand them in a sieve or container for about 10 minutes to drain, which keeps the filling from becoming watery.
4

Season

Cut 120 g garlic chives and 70 g onion into short pieces.

Add 70 g gochugaru, 55 ml anchovy fish sauce, 18 g minced garlic, and 20 ml green plum syrup, then mix quickly without crushing the chives.
5

Step

Open each cucumber slit gently and pack the filling all the way inside.

Use your fingertips to push it in lightly, because pressing too hard can split the cucumber, then coat the outside with a thin layer.
6

Finish

Stand the stuffed cucumbers in a container and spread any remaining filling on top.

Leave at room temperature for 4 hours, refrigerate, then serve from the next day, cutting into 3 cm pieces only right before serving.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique: Garlic chives and a precise thirty-minute salt cure define the structure of Oi-sobagi-kimchi.
Finish cue: Use your fingertips to push it in lightly, because pressing too hard can split the cucumber, then coat the outside with a thin layer.
Avoid this: Do not over-salt cucumbers or they will soften.
Substitution: Cucumbers of uniform thickness salt most evenly, and if substituting sugar for plum syrup, use a smaller quantity to keep the sweetness in check.
Storage and reheating: After stuffing, the cucumbers sit at room temperature for four hours to begin fermentation, then move to the refrigerator, where lactic acid development continues slowly overnight.