Why it works: Cabbage and mustard match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 1,645 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Pepper Hash
Ingredients
Directions
Prepare
Chop the cabbage and peppers.
Combine them with mustard seed in jars.
Heat the vinegar.
Pour the hot vinegar over the mixture and mix well.
Pickle and seal
Let it stand overnight.
Pour off the liquid.
Heat the liquid again.
Pour the heated liquid over the mixture.
Wait until cooled.
Seal the jars.
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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Cabbage + mustardtop 3% of all pairsSmell alikestrongCooked together1,645 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cabbage + peppertop 5% of all pairsSmell alikemoderateCooked together4,081 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cabbage + vinegartop 13% of all pairsSmell alikemoderateCooked together2,924 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cabbage
- Forms the bulk of the hash and gives it a crisp, crunchy texture.
- Peppers
- Add sweetness, colour and a mild heat to the pickle.
- Mustard seed
- Adds a pungent, slightly bitter aroma and flavour to the pickle.
- Vinegar
- Provides the acidity that preserves the vegetables and gives the pickle its tang.
The step that matters
Pouring the hot vinegar over the mixture. Vinegar must be hot enough to soften the vegetables and draw in flavour, while the acid penetrates them. Pouring it off and reheating the liquid repeats this, so the brine stays acidic enough to keep the pickle safe when sealed.
Swap the cabbage
How well each one fits the dish's main ingredients (pepper, mustard, vinegar):
- Horseradishfits better
- Radishfits about as well
- Lettucefits about as well
- Cabbagethe original
Fit is the average pairing score against pepper, mustard, vinegar. 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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