Oi Sobagi (Cucumber Kimchi)
Crisp Korean cucumbers stuffed with a spicy chive-radish filling and quick-fermented overnight. Summer's freshest, crunchiest kimchi.
Why This Recipe Works
- Cross-cut stuffing technique maximizes surface area for the spicy filling to penetrate every bite.
- Quick salting (30 minutes) draws out just enough moisture to season the cucumber without making it limp.
- Garlic chives + radish filling provides crunch-on-crunch texture and a garlicky, spicy kick.
- Short fermentation (1-2 days) develops tang without losing the cucumber's signature snap.
Summer on a Plate
Oi sobagi is the kimchi of July. When it's too hot for heavy stews and the garden is overflowing with cucumbers, Korean families make batches of this stuffed cucumber kimchi. It's cold, crunchy, and spicy — exactly what you want next to a bowl of cold noodles (naengmyeon) or alongside grilled meat on a sweltering day.
Oi Sobagi (Cucumber Kimchi)
🛒 Ingredients
- ✦6 Korean cucumbers (or Persian cucumbers)
- ✦2 tablespoons coarse sea salt (for salting)
- ✦1 cup garlic chives (buchu), cut into 1/2 inch pieces
- ✦1/4 cup Korean radish (mu), julienned finely
- ✦2 tablespoons gochugaru (Korean red pepper flakes)
- ✦1 tablespoon fish sauce
- ✦1 tablespoon salted shrimp (saeujeot), minced
- ✦2 cloves garlic, minced
- ✦1 teaspoon sugar
- ✦1 teaspoon sesame seeds
👨🍳 Instructions
01Step 1
Trim the ends of the cucumbers. Cut a cross into each cucumber lengthwise, leaving 1/2 inch intact at each end — the cucumber should open like a pocket but stay in one piece.
02Step 2
Rub coarse salt into the cuts and over the outside of each cucumber. Let sit for 30 minutes to draw out moisture.
03Step 3
While cucumbers salt, make the filling: combine garlic chives, julienned radish, gochugaru, fish sauce, salted shrimp, garlic, sugar, and sesame seeds. Mix well.
04Step 4
Rinse the salted cucumbers briefly under cold water. Gently squeeze out excess moisture.
05Step 5
Stuff the chive-radish filling into each cucumber's cross-cut pockets. Pack it in generously — the filling should be visible.
06Step 6
Place stuffed cucumbers in an airtight container. Press down gently. Spread any remaining filling on top.
07Step 7
Leave at room temperature for 6-8 hours to kick-start fermentation, then refrigerate. Ready to eat in 1 day, best at 2-3 days.
Nutrition Per Serving
Estimates based on standard preparation. Adjustments alter macros.
🔄 Substitutions
Instead of Korean cucumbers...
Use Persian cucumbers
Closest substitute — similar size, thin skin, crunchy. Don't use English or regular cucumbers — too watery.
Instead of Garlic chives (buchu)...
Use Regular chives + 1 extra clove garlic
Milder flavor but works in a pinch
Instead of Salted shrimp (saeujeot)...
Use Extra fish sauce (1 tablespoon)
For a vegetarian version, use soy sauce + a pinch of kelp powder
🧊 Storage & Reheating
In the Fridge
Best within 3-5 days while cucumbers are still crunchy. After a week they soften.
In the Freezer
Not recommended — cucumbers turn mushy.
Reheating Rules
Serve cold, straight from the fridge. No reheating needed.
❓ Frequently Asked Questions
Why is it called oi sobagi?
Oi means cucumber and sobagi means stuffed. It's one of several 'sobagi' kimchis in Korean cuisine — vegetables stuffed with seasoned filling and fermented. The technique of cross-cutting and stuffing is unique to Korean pickling.
How is cucumber kimchi different from regular kimchi?
Regular kimchi (tongbaechu-kimchi) uses napa cabbage, ferments for weeks to months, and develops deep sour complexity. Cucumber kimchi is a quick, fresh kimchi — ready in 1-2 days, meant to be eaten within a week, and prized for its cold crunch rather than funky depth.
The Science of
Oi Sobagi (Cucumber Kimchi)
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