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a full jar of fermented coleslaw

Probiotic-Rich Fermented Coleslaw

Sally ProsserSally Prosser
A vibrant, fermented slaw packed with probiotics, using purple cabbage, ginger, and spices. Fermented for 5–7 days for a tangy kick.
Prep Time 30 minutes
Cook Time 0 minutes
Fermentation Time 6 days
Total Time 6 days 30 minutes
Course Salad, Side Dish
Cuisine Global
Servings 5 (as a side)
Calories 50 kcal

Equipment

  • 1 Large mixing bowl For tossing veggies and spices.
  • 1 Mandoline or sharp knife To thinly slice cabbage and veggies. Use a mandoline for even cuts
  • 1 kitchen scale Essential for calculating salt-to-veggie ratio.
  • 1 1-liter mason jar Sterilize with boiling water before use.
  • 1 Fermentation weight A small glass jar or ziplock bag filled with water (non-metal!).
  • 1 Thin cloth or coffee filter Covers jar to block debris but allow airflow.
  • 1 Rubber band Secures cloth over jar.

Ingredients
  

  • 200 g Purple cabbage Shredded (about 1/4 head).
  • 300 g Savoy cabbage Shredded (about 1/2 head).
  • 2 Chili peppers Deseeded for mild heat, or leave seeds for spice
  • 10 g Fresh ginger Peeled and grated (thumb-sized piece).
  • 2 cloves Garlic Minced (avoid pre-minced; fresh is key).
  • 3 Spring onions Thinly sliced, including green tops.
  • 2 medium Carrots Julienned or grated for sweetness.7
  • 2 tsp Fennel seeds
  • 1 tsp Mustard seeds Adds subtle tang and texture.
  • 15 g Non-iodized salt Sea salt or pickling salt (critical for fermentation).
  • Filtered water Chlorine-free (boil and cool tap water if needed).

Instructions
 

Prep the Vegetables

  • Shred the cabbage: Remove tough cores, then slice cabbages into thin strips using a mandoline or knife.
  • Prep aromatics: Grate ginger, mince garlic, slice chilies (wear gloves!), and julienne carrots.
  • Mix: Combine all veggies, ginger, garlic, chilies, and seeds in a large bowl. Toss to distribute evenly.

Weigh and Pack

  • Weigh mixture : Place veggies in a bowl on a scale. Note the total weight (e.g., 500g).
  • Pack the jar : Transfer veggies to the sterilized mason jar, pressing firmly with a spoon or clean hands to remove air bubbles. Leave 1–2 inches of space at the top.

Make the Brine

  • Calculate salt : For every 100g of veggies, use 2.5g salt (e.g., 500g veggies = 12.5g salt).
  • Dissolve salt : Mix salt into 2–3 cups of warm filtered water until fully dissolved. Pour brine over veggies until fully submerged.

Ferment

  • Weight the veggies : Place fermentation weight (e.g., small jar or water-filled bag) on top to keep veggies underwater.
  • Cover : Secure cloth over the jar with a rubber band. Label with the start date.
  • Store : Keep at room temperature (65–75°F / 18–24°C) for 5–7 days . Check daily: press down veggies, skim off any scum, and ensure no mold forms

Store and Serve

  • Refrigerate : Once tangy (taste after 5 days), remove the weight, seal the jar, and refrigerate. Flavors will mellow.
  • Serve : Enjoy chilled as a side or on sandwiches.

Video

Notes

  1. Salt Matters: Use non-iodized salt—iodine can inhibit fermentation.
  2. Salt Substitution: If fine sea salt is unavailable, use kosher salt at a 1:1 ratio, guaranteeing it's without additives like iodine which can hinder fermentation.
  3. Mold Alert: If fuzzy mold appears (not just cloudy brine), discard the batch. Always guarantee the cabbage remains submerged under the brine to avoid mold growth; use a fermentation weight or a smaller jar to press down if necessary.
  4. Flavor Boost: Add 1 tsp turmeric or 1 tbsp sauerkraut juice for extra probiotics. Experiment with different spices like caraway seeds or mustard seeds during the initial mix to add unique flavors to your fermented coleslaw.
  5. Too Salty? Rinse a small portion before serving.
  6. Texture Fix: Add toasted nuts or jicama before serving if veggies lose crunch.
  7. Crave Mayo? If you crave creaminess, ferment the veggies first (5–7 days), then stir in mayo or a yogurt-mayo blend right before eating . This balances probiotic benefits with classic coleslaw flavor!
  8. Fermentation Time: Taste the coleslaw daily after the third day; fermentation speed can vary with room temperature, so trust your taste to decide when it's ready.
Keyword Coleslaw, Fermented, Gut-Healthy, Probiotic Foods, Vegan