Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Pickle Plums Like Olives
Ingredients
Directions
Make the brine
Combine vinegar, mustard seed, and salt in a pot and bring to a boil.
Pickle the plums
Pour the hot mixture over green plums before they begin to ripen.
Let the plums sit in the mixture overnight.
Drain the vinegar, heat it again, and pour it over the plums.
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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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Vinegar + plumtop 14% of all pairsSmell alikemoderateCooked together655 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
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Mustard + plumtop 14% of all pairsSmell alikestrongCooked together158 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green plums
- The main fruit, which firms up and takes on the sour, salty flavour of the brine.
- Vinegar
- Provides the acidity that sharpens the fruit and helps preserve it.
- Mustard seed
- Adds a sharp, pungent flavour to the pickling liquid as it steeps.
The step that matters
Pour the hot mixture over green plums before they begin to ripen.. Hot brine penetrates the fruit and seasons it quickly. Green plums are firmer and more acidic than ripe ones, so they hold their texture better in the pickle. Ripening softens the flesh, so timing matters.
Swap the plum
How well each one fits the dish's main ingredients (vinegar, mustard):
- Avocadofits better
- Limefits better
- Cherryfits better
- Plumthe original
Fit is the average pairing score against vinegar, mustard. 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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