Kkakdugi (Cubed Radish Kimchi)
Crunchy cubed Korean radish in a bold gochugaru-garlic-ginger paste. The essential pairing for soups, stews, and Korean BBQ.
Why This Recipe Works
- Sugar during salting accelerates moisture extraction and provides fuel for lactic acid bacteria — faster, more consistent fermentation.
- Uniform 3/4-inch cubes ensure even fermentation — no mushy outsides with raw centers.
- No draining — the salt-drawn liquid becomes part of the kimchi, concentrating flavor.
- Simple paste (gochugaru + fish sauce + salted shrimp + garlic + ginger) lets the radish flavor dominate.
The Perfect Soup Partner
Every Korean soup restaurant serves kkakdugi as the default banchan — not cabbage kimchi, kkakdugi. There's a reason: the crunchy, spicy radish cubes cut through rich, milky broths (seolleongtang, gomtang, sullungtang) in a way that soft cabbage kimchi can't. The textural contrast is the point. A bowl of seolleongtang without kkakdugi is like french fries without ketchup — technically complete but missing something essential.
Kkakdugi (Cubed Radish Kimchi)
🛒 Ingredients
- ✦1 large Korean radish (mu), about 2 lbs
- ✦2 tablespoons coarse sea salt (for salting)
- ✦1 tablespoon sugar (for salting)
- ✦3 tablespoons gochugaru (Korean red pepper flakes)
- ✦2 tablespoons fish sauce
- ✦1 tablespoon salted shrimp (saeujeot), minced
- ✦4 cloves garlic, minced
- ✦1 teaspoon fresh ginger, grated
- ✦3 green onions, cut into 1/2-inch pieces
- ✦1 teaspoon sugar for paste
👨🍳 Instructions
01Step 1
Peel the Korean radish and cut into 3/4-inch cubes. Uniformity matters — even cubes ferment evenly.
02Step 2
Toss the cubes with coarse salt and 1 tablespoon sugar. Let sit for 30 minutes, tossing every 10 minutes, until the radish has released liquid and is slightly flexible.
03Step 3
Don't drain the liquid — combine gochugaru, fish sauce, salted shrimp, garlic, ginger, and 1 teaspoon sugar in the same bowl. Mix well.
04Step 4
Add green onions and toss everything together until every cube is evenly coated in the red paste.
05Step 5
Pack tightly into glass jars or airtight containers. Press down to eliminate air pockets. Leave 1 inch of headspace for expansion.
06Step 6
Leave at room temperature for 1-2 days until bubbles appear. Refrigerate. Best after 3-5 days, good for months.
Nutrition Per Serving
Estimates based on standard preparation. Adjustments alter macros.
🔄 Substitutions
Instead of Korean radish (mu)...
Use Daikon radish
Milder, softer texture — works but won't have the same snappy crunch
Instead of Fish sauce + salted shrimp...
Use Soy sauce (3 tablespoons) + kelp powder
For vegan kkakdugi — increase garlic to compensate for lost umami
Instead of Gochugaru...
Use Aleppo pepper flakes
Milder heat, less Korean-specific flavor — use same amount
🧊 Storage & Reheating
In the Fridge
Keeps for 3-6 months. Gets more sour over time — ideal for cooking after 2 months.
In the Freezer
Freeze in portions for up to 6 months. Texture softens but good for stews.
Reheating Rules
Serve cold. No heating needed for banchan. For cooking, add directly to hot soups.
❓ Frequently Asked Questions
How is kkakdugi different from regular kimchi?
Same fermentation technique, different vegetable and cut. Regular kimchi uses napa cabbage in large leaves. Kkakdugi uses Korean radish in cubes. The radish provides a completely different texture — crunchy, dense, and snappy. They're often made together during kimjang and served as complementary banchan.
Why is my kkakdugi mushy?
Three possible causes: (1) not enough salt during the initial salting step, (2) cubes cut too small, or (3) fermented too long at room temperature. The salt draws out moisture and firms the radish. Larger cubes stay crunchier. Move to the fridge sooner if your kitchen is warm.
The Science of
Kkakdugi (Cubed Radish Kimchi)
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