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Cucumber Kimchi (Oi Gimchi)

This vibrant cucumber kimchi, traditionally known as oi kimchi, is a refreshing and crunchy alternative to the well-known cabbage variety. A staple of Korean cuisine, this vegan fermented dish balances heat from the Korean chilli powder with the crisp texture of fresh pickling cucumbers. It is a fantastic introduction to home fermentation, requiring only a few days to develop its signature tangy and savoury profile.

Perfect as a cooling side dish for spicy meals or as a bold addition to a summer salad, this homemade pickle is both healthy and versatile. By using spring onions and Korean leeks, you achieve a deep aromatic flavour that develops beautifully as it ferments in the jar. Prepare a batch to keep in the fridge for a quick, probiotic-rich snack or condiment.

Continue reading below

Ingredients for Cucumber Kimchi (Oi Gimchi)

  • 10 pickling cucumbers, just over a pound

  • 80ml table salt

  • 1050ml water

  • 6 cloves garlic, minced

  • 1/2 onion, diced

  • 1/2 bunch Korean leeks (buchu), cut into 1/2-inch lengths

  • 5 spring onions, cut into 1/2-inch lengths

  • 40g Korean chilli powder

  • 1 tablespoon coarse sea or kosher salt

  • 1 teaspoon sugar

How to make Cucumber Kimchi (Oi Gimchi)

Cut the cucumbers lengthwise into quarters and place in a large bowl. Dissolve the table salt in 950ml the water and pour over the cucumbers. Soak the cucumbers for about 20 minutes.

Combine the garlic, onion, Korean leeks, spring onions, chilli powder, and sea salt in another large bowl.

Remove the cucumbers from the salt water and rinse. Add the cucumbers to the spicy mixture and mix until the cucumbers are all well coated. Stuff the cucumbers into a 1/2-gallon glass jar, pressing firmly until filled.

Dissolve the sugar in the remaining 80ml water and pour over the cucumbers. Cover tightly. Let sit in a cool, dark place for 2 to 3 days before opening to see if it's ripe. The cucumbers should be sour and have absorbed the salt and flavours of the seasoning. Refrigerate after opening. It will keep for almost 2 weeks in the refrigerator.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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