Why it works: Horseradish and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Pepper Sauce
Ingredients
Directions
Prepare
Combine the green peppers and cabbage in a large bowl.
Add the grated horseradish, mustard seed, allspice, cloves, mace, coarse sea salt, and sugar.
Make the sauce
Boil the spices and sugar in the vinegar in a saucepan.
While the vinegar mixture is hot, pour it over the peppers and cabbage.
Store
Once cooled, cover the jars and store in a cool, dry place.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Horseradish + mustardtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Allspice + clovetop 1% of all pairsSmell alikestrongCooked together7,874 recipes
Shared aroma: estragole (anise, licorice).
-
Cabbage + horseradishtop 2% of all pairsSmell alikestrongCooked together481 recipes
Shared aroma: coumarin (sweet, hay).
-
Mustard + allspicetop 2% of all pairsSmell alikestrongCooked together1,928 recipes
Shared aroma: methyleugenol (clove, spice).
-
Cabbage + mustardtop 3% of all pairsSmell alikestrongCooked together1,645 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green peppers
- Provide the bulk of the sauce and its fresh, vegetal flavor.
- Cabbage
- Adds crunch and body that holds up to the hot vinegar.
- Vinegar
- Provides the sharp acidity that gives the sauce its tang and preserves it.
- Horseradish
- Contributes pungent heat that mellows as the sauce stands.
- Sugar
- Balances the vinegar's sharpness with a touch of sweetness.
The step that matters
Pour the hot vinegar mixture over the vegetables while it is still hot. Hot vinegar softens the cabbage and peppers and draws flavor from the spices into them, so pouring it while hot helps the sauce soak through evenly. Letting it cool first would leave the vegetables firmer and less infused.
Swap the mace
How well each one fits the dish's main ingredients (pepper, cabbage, horseradish, mustard, allspice, clove, sugar):
- Cinnamonfits better
- Turmericfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against pepper, cabbage, horseradish, mustard, allspice, clove, sugar. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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