How to Make Horseradish paste
Fermented horseradish paste captures the sinus-clearing heat of fresh horseradish while adding probiotic complexity. The fermentation slightly mellows the initial intensity while developing more nuanced, earthy flavors.
Category: Pastes & Sauces · Method: Lactic Acid · Time: 7-30d · Difficulty: 1/5 · Yield: varies · Temp: 18-22°C
History
Horseradish has been used medicinally and culinarily for over 3,000 years, from ancient Egypt through medieval Europe. Eastern European Jews developed it into a Passover staple. Fermented versions add another dimension to this powerful root.
Ingredients
- 500g Fresh horseradish root — Peeled, cut into chunks
- 15g Sea salt — 3% of root weight
- 60ml White vinegar — Stabilizes heat
- 1 small Beet — Optional, for red color
Equipment
- Food processor
- Well-ventilated area
- Fermentation jar
- Safety goggles (optional but helpful!)
Instructions
Prepare horseradish
In well-ventilated area, peel and cut horseradish into chunks. Work quickly - fumes are potent!
Time: 10 min
Tip: Open windows. Consider goggles. Horseradish is more pungent than onions.
Process to paste
Pulse horseradish in food processor until finely grated. Add optional beet for color.
Time: 5 min
Tip: Don't lean over processor when opening - fumes!
Add salt and vinegar
Mix in salt and vinegar immediately. Vinegar stabilizes the heat compounds.
Time: 2 min
Tip: Adding vinegar early preserves more heat.
Ferment briefly
Transfer to fermentation jar. Ferment 3-5 days at room temperature.
Time: 3-5 days
Tip: Short fermentation maintains heat while adding tang.
Fermentation Timeline
- Day 1-2: Initial fermentation — Mild bubbling. Aroma intensifies.
- Day 3-5: Flavor development — Heat stabilizes. Tang develops.
Signs of Success & Spoilage
Good signs
- White or pink color (with beet)
- Sharp, clear horseradish aroma
- Intense heat with slight tang
- Thick, spreadable texture
Warning signs
- Grey or brown color
- Lost all heat
- Slimy texture
- Off or rotten smell
Troubleshooting
- Not hot enough
- Cause: Old root or too much fermentation Solution: Use fresh root. Add vinegar earlier. Ferment shorter.
- Too hot
- Cause: Very fresh root Solution: Ferment longer to mellow. Mix with sour cream for serving.
- Turned grey
- Cause: Oxidation Solution: Add beet for color. Store covered. Still safe to eat.
Storage
Refrigerate in sealed jars Keeps 3-4 months refrigerated. Heat diminishes over time. Make in small batches.
Health Benefits
- Contains glucosinolates
- Natural antimicrobial
- High in vitamin C
- Supports sinus clearing
Serving Suggestions
- Prime rib accompaniment
- Bloody Mary ingredient
- Oyster sauce base
- Sandwich kick
- Cream sauce enhancement
Related Pastes & Sauces Ferments
Other Lactic Acid Ferments
- Sauerkraut — Vegetable
- Kimchi — Vegetable
- Kefir — Dairy
- Pickles — Vegetable
- Yogurt — Dairy
- Hot Sauce — Condiment
- Water Kefir — Beverage
- Kraut-Chi — Vegetable