Why it works: Apple and cider are a kitchen classic. They rank in the top 2% of all ingredient pairs, and cooks put them together in 1,238 recipes. Both carry 1-octen-3-one, which smells mushroom, metallic. The science ↓
Tomato Chutney
Ingredients
Directions
Prepare
Chop the tomatoes and sprinkle ½ cup coarse sea salt over them.
Let them drain for 24 hours.
Cook
After draining, add the chopped apples, onions, and red peppers.
In a spice bag, combine the ginger and add it to the mixture along with the brown sugar.
Cover everything with cider vinegar and simmer for 4 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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Apple + cidertop 2% of all pairsSmell alikemoderateCooked together1,238 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + gingertop 9% of all pairsSmell alikestrongCooked together6,800 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + gingertop 9% of all pairsSmell alikemoderateCooked together7,595 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
- Tomatoes
- Form the bulk of the chutney and release moisture that cooks down into it.
- Apples
- Add body and natural pectin that help the chutney thicken as it cooks.
- Onions
- Contribute savory depth and soft texture as they break down during simmering.
- Raisins
- Add chewy texture and concentrated sweetness.
- Brown sugar
- Adds sweetness and helps create a thick, glossy texture.
- Cider vinegar
- Provides acidity that sharpens flavor and helps preserve the chutney.
The step that matters
Simmer for 4 hours. Long, gentle simmering lets water evaporate so the chutney thickens and the flavors meld. Too vigorous a boil or too little stirring can scorch the sugars on the bottom of the pot and leave a bitter taste.
Swap the raisin
How well each one fits the dish's main ingredients (tomato, apple, onion, pepper, sugar, ginger, cider):
- Plumfits better
- Mangofits better
- Cherryfits better
- Raisinthe original
Fit is the average pairing score against tomato, apple, onion, pepper, sugar, ginger, cider. 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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