Homemade Fermented Hot Sauce (Printable)

Week-long lacto-fermented hot sauce—fiery, tangy, and versatile for tacos, eggs, and dressings.

# What you'll need:

→ Peppers

01 - 10 oz fresh red chili peppers (Fresno, jalapeño, serrano, or a mix), stems removed
02 - 1 small red bell pepper, stems and seeds removed

→ Vegetables & aromatics

03 - 4 garlic cloves, peeled
04 - 1 small shallot or 1/2 small yellow onion, peeled
05 - 1 medium carrot, peeled and sliced (optional)

→ Brine

06 - 2 cups filtered water
07 - 1 tablespoon non‑iodized salt (sea salt or kosher salt)

→ Finishing

08 - 2 tablespoons apple cider vinegar or distilled white vinegar

# Method:

01 - Dissolve 1 tablespoon non‑iodized salt in 2 cups filtered water until fully dissolved; set aside at room temperature.
02 - Coarsely chop the chili peppers, red bell pepper, carrot (if using), garlic and shallot; uniform pieces will ferment more evenly.
03 - Place the chopped vegetables and aromatics into a clean 1‑quart glass jar, pressing down to eliminate large air pockets.
04 - Pour the prepared brine over the packed vegetables until completely submerged; weigh them down with a fermentation weight or a small zip‑top bag filled with brine to keep everything under the liquid.
05 - Cover the jar loosely with its lid or fit a fermentation airlock to allow gases to escape while preventing contaminants from entering.
06 - Place the jar in a cool, dark spot at roughly 65–72°F and ferment for 7 days, checking daily to ensure vegetables remain submerged and skimming any surface scum or kahm yeast; discard only if colorful mold develops.
07 - After 7 days, transfer the contents, including brine, to a blender; add 2 tablespoons vinegar and purée until smooth, adding additional brine or vinegar to reach the desired viscosity.
08 - Pass the purée through a fine‑mesh sieve for a smooth sauce, pressing with a spatula; retain the rustic texture if preferred.
09 - Transfer the sauce to a sterilized bottle or jar, refrigerate, and allow flavors to meld; keep chilled and use within three months.

# Expert Advice:

01 -
  • This sauce hits a zesty balance—fiery but never one-note—thanks to the magic of fermentation.
  • Once you get a batch going, you can riff endlessly with pepper types and add-ins, so it never tastes the same twice.
02 -
  • Don’t use iodized salt—I learned the hard way that it can totally stall fermentation and ruin your peppers.
  • Once, forgetting my veggies unweighted meant a furry surprise on day three; always keep everything submerged for a safe ferment.
03 -
  • Let your sauce mellow in the fridge for a week after bottling—the flavors deepen and balance out beautifully.
  • Add a couple of cracked coriander seeds to the brine for a surprising floral back note; it’s my not-so-secret trick now.
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