Why it works: Cabbage and pepper are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 4,081 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
To Pickle Red Cabbage
Ingredients
Directions
Prepare
Cut the cabbage into small pieces and remove the outer leaves.
Place the cabbage in a sieve.
Sprinkle the cabbage with coarse sea salt and saltpetre.
Let the cabbage drain for 24 hours.
Squeeze the cabbage until very dry.
Pickle
Place the cabbage in a jar with whole pepper and salt.
Pour cold vinegar over the cabbage without boiling it.
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 + peppertop 5% of all pairsSmell alikemoderateCooked together4,081 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).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 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
- Red cabbage
- Forms the bulk of the pickle and provides the crisp texture that the salt draws water from.
- Saltpetre
- Helps the cabbage keep its color and firmness during pickling.
- Cold vinegar
- Provides the acidity that preserves the cabbage and gives the pickle its sharp flavor.
The step that matters
Pour cold vinegar without boiling it. Heating the vinegar can soften the cabbage and drive off its sharpness, leaving a limp, less crisp pickle. Keeping the vinegar cold preserves the cabbage's crunch.
Swap the cabbage
How well each one fits the dish's main ingredients (pepper, vinegar):
- Capsicumfits better
- Mustardfits about as well
- Cabbagethe original
- Cucumberfits less well
Fit is the average pairing score against pepper, 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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