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Gluten Free and Vegan Salt-Koji Pickles “Tsukemono” - Fermented Japanese Superfoods Made Simple

  • Writer: Hitomi
    Hitomi
  • Aug 26
  • 2 min read

Updated: Sep 8

Plate with cucumber, radish, and avocado pickles on a wooden table. Background features a blue placemat and red chopsticks. Text: Japanese Pickles.

Contents



About This Recipe

These Salt-Koji Pickles (tsukemono) are one of the simplest ways to enjoy Japanese fermented foods at home. By marinating vegetables in salt-koji, a traditional Japanese seasoning made from rice koji, you’ll get crunchy, flavorful pickles that also support your gut health. Unlike vinegar-based pickles, koji-pickles ferment gently, enhancing natural sweetness while boosting probiotics.



Recipe Overview

  • Prep Time: 10 minutes (plus marinating time)

  • Cook Time: None

  • Total Time: 12–24 hours (marinating)

  • Serving Size: 2 servings

  • Cuisine: Japanese

  • Equipment Needed: Knife, cutting board, zip bag, container

  • Difficulty Level: Easy

  • Suitable For: Gluten-free, Dairy-free, Vegan



Nutrition and Gut Health Benefits

  • Cucumber: Hydrating, rich in antioxidants, and supports digestion.

  • Daikon radish: Contains digestive enzymes that aid in breaking down fat and carbs.

  • Avocado: Adds healthy fats and fiber, helping to balance blood sugar and support gut motility.

  • Salt-koji: A probiotic-rich seasoning that promotes healthy gut bacteria, enhances nutrient absorption, and brings natural umami flavor.

✨ Together, these ingredients create a gut-friendly, low-calorie, plant-based side dish that’s perfect for daily “cho-katsu” (gut health practices).



Ingredients (for 2 servings)

  • ½ cucumber

  • 3–4 inches daikon radish

  • ½ avocado

  • 1 ½ Tbsp + 1 tsp salt-koji



Instructions


1. Cucumber

Hand slicing a cucumber on a patterned wooden cutting board. Green cucumber contrasts with the intricate wood grain design.

Slice cucumber diagonally and coat with ½ Tbsp salt-koji. Refrigerate for 1–24 hrs.

2. Daikon - Japanese Radish

Hand slicing white radish on a patterned wooden cutting board. Silver ring on finger, knife cutting thin round slices, natural lighting.

Peel daikon, cut into matchsticks, and mix with 1 Tbsp salt-koji (plus shiso leaves if available) in a bag. Refrigerate for 12–24 hrs.

3. Avocado

Red brush applies glaze on green avocado in glass dish. Wood-patterned background, creating a fresh, colorful cooking scene.

Brush avocado half with 1 tsp salt-koji and pickle in a container (not a bag, to avoid squishing) for about 12 hrs.




Serving Suggestions

  • As a refreshing side dish with rice or noodles

  • Topped on quinoa or green salads

  • As a healthy snack between meals

  • As a colorful addition to a Japanese-style bento



Final Thoughts

These Salt-Koji Pickles are proof that gut-friendly eating can be simple, affordable, and delicious. With just three vegetables and salt-koji, you can enjoy refreshing, probiotic-rich pickles that elevate any meal. Whether you’re new to fermented foods or practicing daily “cho-katsu,” this recipe is an easy step toward better gut health.



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