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 Sauce
Ingredients
Directions
Prepare
Chop the apples, tomatoes, raisins, onion, and red pepper separately.
Cook
Mix all chopped ingredients together with brown sugar, fine salt, mustard, and cayenne pepper.
Add vinegar to the mixture.
Boil the mixture for 2 hours.
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).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 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
- Tart apples
- Adds tartness and body as they soften into the chutney.
- Ripe tomatoes
- Contribute moisture and acidity, helping the mixture break down into a sauce.
- Brown sugar
- Adds sweetness and depth, and balances the sharpness of the vinegar.
- Stoned raisins
- Add concentrated sweetness and a chewy texture.
- Mustard
- Provides a sharp, pungent flavor that stands up to the sweetness.
- Vinegar
- Adds acidity that sharpens the flavor and helps preserve the sauce.
The step that matters
Boiling the mixture for 2 hours. Long cooking reduces the liquid and softens the fruit into a thick sauce. Sugars can scorch on the bottom of the pan if the heat is too high, so keep it at a gentle boil and stir regularly.
Swap the raisin
How well each one fits the dish's main ingredients (apple, tomato, sugar, onion, pepper, mustard, vinegar):
- Plumfits better
- Cherryfits better
- Mangofits better
- Raisinthe original
Fit is the average pairing score against apple, tomato, sugar, onion, 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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