Kkakdugi (Cubed Radish Kimchi): Crunchy Korean Favorite

Kkakdugi (깍두기) is one of Korea's most beloved kimchi varieties - cubed Korean radish (mu) fermented with gochugaru, garlic, and other seasonings. The name comes from the sound of cutting: "kkak-duk kkak-duk."

What makes it special:

• Incredibly crunchy texture (stays crisp even after weeks)
• Perfect bite-sized cubes
• Pairs perfectly with soups and stews
• Often considered easier than napa cabbage kimchi

Koreans especially love kkakdugi with seolleongtang (ox bone soup) and other rich broths. The crunch and tang cut through fatty dishes beautifully.

Ingredients

For About 1 Quart:

• 1 large Korean radish (mu), about 2 lbs
• 2 tbsp sea salt
• 1 tbsp sugar

For the Paste:

• 3 tbsp gochugaru
• 3 tbsp fish sauce
• 4 cloves garlic, minced
• 1 tsp grated ginger
• 2 green onions, chopped
• 1 tbsp rice flour + 1/4 cup water (cooked into paste)
• Optional: 1 tbsp salted shrimp (saeujeot)

Note on Korean Radish: If you can't find Korean mu, use daikon radish. It's slightly less crunchy but still delicious.

How to Make Kkakdugi

Step 1: Prepare the Radish

1. Peel the radish completely
2. Cut into 3/4 to 1-inch cubes
3. Place in large bowl with salt and sugar
4. Toss to coat, let sit 30-60 minutes
5. The radish will release liquid and become slightly flexible

Step 2: Make Rice Paste

1. Mix rice flour with water
2. Cook over medium heat, stirring constantly
3. Remove when it becomes thick and translucent
4. Cool completely

Step 3: Make Seasoning Paste

1. Combine cooled rice paste with gochugaru
2. Add fish sauce, garlic, ginger
3. Mix until it forms a red paste
4. Fold in green onions

Step 4: Combine

1. Don't drain the radish liquid - it's your fermentation brine
2. Add seasoning paste to radish cubes
3. Mix thoroughly with gloved hands
4. Every cube should be coated

Step 5: Pack and Ferment

1. Pack into jar, pressing to release air
2. Leave 2 inches headspace (it expands!)
3. Ferment at room temperature 2-3 days
4. Taste daily - refrigerate when tangy enough

Tips for Perfect Kkakdugi

For Maximum Crunch:

• Use fresh, firm radish (not rubbery)
• Cut cubes consistently for even fermentation
• Don't over-salt - soft radish = mushy kkakdugi
• Ferment shorter if you want more crunch

For Best Flavor:

• Sweet radishes = use less sugar
• Bitter radishes = add more sugar
• The radish liquid is flavorful - don't discard it
• Let it ferment until bubbling well

Storage:

• Kkakdugi keeps well for months refrigerated
• Crunch diminishes over time but is still good
• Old kkakdugi is great in stews

Serving Suggestions

Traditional Pairings:

• Seolleongtang (ox bone soup)
• Galbitang (beef short rib soup)
• Samgyetang (ginseng chicken soup)
• Any Korean soup or stew

Modern Uses:

• Grain bowls with protein
• Tacos and burritos
• Alongside grilled meats
• Chopped into fried rice

Soup Method: Add aged kkakdugi (1+ month) directly to soups in the last few minutes of cooking. The cubes warm through and the brine flavors the broth.

Frequently Asked Questions

Why is my kkakdugi mushy? Common causes: old radish, too much salt during salting step, fermented too long at warm temperature, or radish was frozen previously. Use fresh, firm radish.

Can I use daikon instead of Korean radish? Yes, but daikon is softer and has higher water content. Salt it a bit longer to draw out more moisture, and expect slightly less crunch.

How long does kkakdugi take to ferment? At room temperature (68-75°F), 2-4 days. It's ready when nicely tangy and you see bubbles when you press the cubes. Refrigerate to stop fermentation.

My kkakdugi is too spicy - what can I do? Next time, use less gochugaru. For the current batch, serving it with fatty foods (like bone broth or pork belly) will balance the heat.

Related Tools

• Salt Calculator

Related Guides

• Kimchi
• White Kimchi