Why it works: Mustard and onion 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 ↓
Tomato Chutney
Ingredients
Directions
Combine all ingredients in a large pot.
Boil gently, stirring occasionally, until thickened.
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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Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Ginger + peppertop 9% of all pairsSmell alikestrongCooked together6,800 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
- Provide the bulk and main body of the chutney.
- Brown sugar
- Adds sweetness and helps the chutney thicken as it cooks down.
- Vinegar
- Adds acidity that balances the sweetness and helps preserve the chutney.
- Sultanas
- Add chewy texture and concentrated sweetness.
- Onions
- Add body and savoury depth as they soften during cooking.
The step that matters
Boil gently until thickened. Cooking slowly while stirring prevents the sugars and tomato solids from scorching on the base of the pot, and gentle heat lets moisture evaporate so the chutney thickens evenly.
Swap the tomato
How well each one fits the dish's main ingredients (sugar, vinegar, mustard, ginger, onion, pepper):
- Horseradishfits better
- Broccolifits better
- Capsicumfits better
- Tomatothe original
Fit is the average pairing score against sugar, vinegar, mustard, ginger, onion, pepper. 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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