Sauerkraut is one of the oldest preserved foods on earth — just cabbage and salt, transformed by the bacteria that live on the cabbage leaf. No starter, no vinegar, no heat. Pure lacto-fermentation. It takes minutes to make and a week or two to become something remarkable.
What You Need
- 1 medium green cabbage (about 2 lbs)
- 1 tbsp non-iodized salt (sea salt or kosher salt — iodized salt inhibits fermentation)
- Caraway seeds, juniper berries, or dill (optional)
Method
- Remove outer cabbage leaves and set aside. Quarter the cabbage, remove the core, and shred very thinly.
- Weigh the shredded cabbage. Add 2% salt by weight — about 1 tbsp per 2 lbs of cabbage.
- Massage the salt into the cabbage vigorously with your hands for 5–10 minutes. It will wilt dramatically and release a pool of brine.
- Pack tightly into a clean wide-mouth jar, pressing firmly so brine rises above the cabbage.
- Tuck a reserved outer cabbage leaf over the top to keep shreds submerged. The cabbage must stay below the brine to ferment safely.
- Cover with a cloth. Leave at room temperature for 1–4 weeks. Taste from day 5. When it's pleasantly sour to your liking, seal and refrigerate.
Tips & Notes
- The salt draws water out of the cabbage — that liquid IS the brine. No water needed.
- Bubbles are good. Mold on the surface (not just harmless white kahm yeast) means the cabbage was exposed to air — check the seal.
- Longer fermentation = more sour and complex. Start tasting at 7 days.
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