Oi-jangajji (Soy-Pickled Cucumber)

Ingredients

Equipment Needed

• •2-liter heatproof glass jar, glazed onggi, or stainless bowl with lid
• •Small plate or fermentation weight
• •Medium saucepan
• •Clean tongs
• •Clean kitchen towel for squeezing slices

Instructions

1. 1

   Scrub the cucumbers

   Choose cucumbers that feel hard from end to end. Rub them with the coarse salt to remove grit and tiny spines, then rinse well and dry completely. Trim 3 mm from both ends, especially the blossom end, because the enzymes there soften pickles. Leave the cucumbers whole. Whole flesh cures slowly and stays crisp.

2. 2

   Pack the vessel

   Use a clean 2-liter heatproof glass jar, glazed onggi, or stainless bowl. If using glass, warm it with hot tap water and empty it before packing, so the boiling brine does not shock cold glass. Pack the cucumbers tightly with the garlic and chiles, leaving about 2.5 cm headspace for the brine and weight.

3. 3

   Boil the brine

   Combine the soy sauce, rice vinegar, water, and sugar in a saucepan. Bring to a full boil, stirring until the sugar dissolves, then boil 2 minutes. Do not simmer it down; reducing makes the brine too salty. It should taste sharper and saltier than you want the finished pickle, because the cucumbers will release water as they cure.

   Use regular soy sauce if you can. Low-sodium soy makes a milder pickle and a weaker brine, so keep that version refrigerated and eat it within 2 weeks.
4. 4

   Pour it hot

   Pour the boiling brine directly over the packed cucumbers until they are fully covered. The skins will shift from bright green to olive, and that is correct. Set a small plate or fermentation weight on top so no cucumber floats. Cool to room temperature, no longer than 2 hours, then cover and refrigerate. The hot pour is the crunch: it firms the skin and starts the cure before the cucumber can collapse.

5. 5

   Cure three days

   Refrigerate the jar for 3 days. Once a day, check that every cucumber is under the brine and press the weight down with clean hands or clean tongs. The cucumbers will wrinkle and bend, but they should not feel mushy. Air is where spoilage starts, so do not let pieces sit above the liquid.

6. 6

   Reboil the brine

   On day 3, drain the brine into a saucepan and keep the cucumbers, garlic, and chiles in a heatproof vessel. Bring the brine back to a full boil and boil 2 minutes, skimming any foam. Pour the hot brine back over the cucumbers, weight them again, cool to room temperature, and refrigerate. Do not pour boiling brine into a chilled glass jar; move the cucumbers to a warmed heatproof vessel first. The pickle is ready after 24 more hours and better on day 5.

7. 7

   Slice and season

   Lift out only what you will eat. Slice the pickled cucumbers into thin coins or diagonal pieces. Taste one. If the salt bites too hard, soak the slices in cold water for 5 minutes, then squeeze hard in a clean towel until no brine drips. For 2 cucumbers, toss with 2 teaspoons sesame oil, 2 teaspoons sesame seeds, 1 chopped scallion, and 1 teaspoon gochugaru if you want a little warmth. The pickle should taste of cucumber first, soy and vinegar second.

8. 8

   Store submerged

   Return any unused pickles to the brine with a clean utensil and keep them refrigerated. They keep 4 to 6 weeks if fully submerged. Discard the jar if you see mold, strong fizzing, or an off smell. This is a refrigerated pickle, not shelf-stable canning.

Chef Tips

• •Buy the cucumber by firmness, not prettiness. Korean oi or Persian cucumbers with thin skins and small seed cores are best; thick waxed cucumbers give you a watery jar and tough skin.
• •The hot pour and second boil are the dish's spine. You can use a modern refrigerator instead of a cool pantry and a clean glass jar instead of onggi, but don't skip the reboil or let the cucumbers float.
• •Do not cut the sugar to nothing. Sugar is not there to make candy; it rounds the soy and vinegar and helps the flesh cure without going leathery. Three-quarter cup is restrained for this amount.
• •For a less salty table, slice the pickle, soak it 5 to 10 minutes, and squeeze hard before seasoning. Fix the serving bowl, not the whole jar, because a weak brine shortens its life.

Advance Preparation

• •Start at least 4 days before you plan to serve. Day 5 to day 7 gives the best balance of crunch, salt, and soy-vinegar depth.
• •Undressed pickles keep 4 to 6 weeks refrigerated as long as they stay under the brine. Once sliced and seasoned as muchim, eat within 2 days.
• •You can make a half batch in a 1-liter jar using 600g cucumbers, 1/2 cup soy sauce, 1/2 cup rice vinegar, 1/2 cup water, and 6 tablespoons sugar. Keep the ratios steady.

Frequently Asked Questions

Nutrition Information

1 serving (about 140g)