Why it works: Onion and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Chutney, Indian
Ingredients
Directions
Make the chutney
Cook the apples, onions, and garlic with the salt, sugar, and vinegar until soft.
Pass the mixture through a fine sieve.
Add the raisins, ginger, cayenne, and mustard; mix well.
Transfer to a jar and let it sit in a warm place overnight.
Bottle
Fill dry, wide-necked bottles or jars with chutney and seal tightly.
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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Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + gingertop 9% of all pairsSmell alikemoderateCooked together7,595 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Apple + gingertop 9% of all pairsSmell alikemoderateCooked together1,424 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Ginger + mustardtop 10% of all pairsSmell alikemoderateCooked together2,456 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
- Sour apples
- Provide tartness and pectin that thickens the chutney as it cooks down.
- Moist sugar
- Adds sweetness and helps preserve the chutney while balancing the vinegar.
- Malt vinegar
- Supplies acidity that gives the chutney its sharp flavour and helps keep it stable.
- Onions
- Add bulk, savoury depth, and body to the cooked base.
- Raisins
- Add concentrated sweetness and soft chewy texture.
The step that matters
Passing the cooked mixture through a fine sieve. Sieving removes the fibrous pulp and skins so the chutney becomes smooth and even in texture. Cooking until fully soft ensures the apples and onions break down enough to pass through.
Swap the onion
How well each one fits the dish's main ingredients (malt, vinegar, apple, sugar, raisin, ginger, mustard):
- Shallotfits better
- Beetrootfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against malt, vinegar, apple, sugar, raisin, ginger, 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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