How to Make Crunchy and Spicy Cucumber Kimchi in 15 Minutes

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A plate of fresh oisobagi, a Korean kimchi made from cucumbers stuffed with a spicy mixture of red chili powder and chives.


Cucumber kimchi(photo by easyn)

 Looking for a quick, flavorful Korean side dish? This 15-minute cucumber kimchi recipe is perfect for hot days and busy kitchens. Crisp, spicy, and refreshing—it’s everything you want in a summer banchan.

Cucumber kimchi, or oi-so-ba-gi (오이소박이), is one of the easiest and fastest types of kimchi to prepare. Unlike napa cabbage kimchi, which requires fermentation, cucumber kimchi can be enjoyed fresh on the same day. It’s light, crunchy, and bursting with flavor—a perfect companion to grilled meats, rice bowls, or even eaten alone.

In Korea, a meal is often served with a variety of small side dishes called banchan (반찬), and this cucumber kimchi is a beloved summer classic.

Let’s walk through how to make this classic dish in just 15 minutes from start to finish.

Ingredients You’ll Need

·         4 small Korean cucumbers (or Persian cucumbers)

·         1 tbsp coarse sea salt

·         1/4 cup Korean chives or green onions, chopped

·         2 tbsp Korean chili flakes (gochugaru)

·         1 tbsp garlic, minced

·         1 tsp sugar

·         1 tbsp fish sauce (optional for vegan, use soy sauce or omit)

·         1 tsp sesame seeds (optional)

Step-by-Step Instructions

1.   Prepare the Cucumbers:

      Wash and trim the ends of the cucumbers. Slice each cucumber into quarters lengthwise, stopping about 1 inch from the bottom so they stay attached. Sprinkle with sea salt and let sit for 10 minutes to draw out excess moisture.

2.   Make the Filling:

      In a bowl, mix the chives or green onions, gochugaru, garlic, sugar, and fish sauce (or soy sauce). This spicy mix will go inside the cucumbers.

3.   Stuff the Cucumbers:

      After 10 minutes, the cucumbers should be slightly soft and have released water. Gently squeeze them to remove excess moisture. Carefully open the salted cucumbers, and use your fingers or a spoon to generously stuff the spicy filling into the cuts. Don't be afraid to get your hands messy!

4.   Serve or Store:

      You can eat the cucumber kimchi immediately for a fresh, crunchy bite, or store it in an airtight container in the fridge for a few hours to let the flavors develop.

Tips for the Best Cucumber Kimchi

·         Use small, thin-skinned cucumbers like Korean or Persian varieties for maximum crunch.

·         If you prefer a less spicy version, reduce the gochugaru or add a bit more sugar.

·         For a vegan option, skip the fish sauce and use soy sauce or sea salt.

·         Add julienned carrots or onions for extra texture and color.

Vegan Version: How to Make Cucumber Kimchi Without Fish Sauce

If you’re following a vegan diet or avoiding fish sauce, cucumber kimchi can still be full of flavor. Simply replace the fish sauce with soy sauce or a pinch of sea salt. For deeper umami, try using Korean soy sauce (guk-ganjang)—a traditional soy sauce made from fermented soybeans, known for its rich, salty flavor and commonly used in soups and vegetable dishes.

The rest of the recipe stays the same: spicy seasoning, fresh vegetables, and a quick pickle process. You’ll still enjoy that signature crunch and heat, all while keeping the dish completely plant-based.

How Long Does It Last?

Fresh cucumber kimchi is best eaten within 2–3 days, as the cucumbers can lose their crunch over time. Keep it refrigerated and use a clean utensil each time to extend freshness.

Conclusion: A Quick Kimchi You’ll Want Again and Again

Cucumber kimchi is proof that making Korean food doesn’t have to be time-consuming. With just a handful of ingredients and 15 minutes, you can enjoy a refreshing, spicy side dish that adds life to any meal.

Have you ever made cucumber kimchi before? What’s your favorite quick Korean side dish?

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