Why it works: Tomato and onion are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 20,633 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Curried Tomatoes
Ingredients
Directions
Prepare
Slice the tomatoes.
Cook the tomatoes
Bake or lightly fry the sliced tomatoes.
Make the curry
Fry the grated apple and chopped onion in hot butter until tender.
Add the curry powder and a few spoonfuls of thick gravy.
Simmer for a few minutes.
Stir in the sliced tomatoes and lemon juice.
Let it thicken.
Serve hot.
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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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Tomato + appletop 13% of all pairsSmell alikestrongCooked together548 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body and tart, juicy flavour of the dish.
- Apple
- Adds sweetness and soft texture that softens as it cooks down.
- Onion
- Builds savoury depth as it softens in the butter.
- Curry powder
- Supplies the spiced aroma that defines the dish.
- Thick gravy
- Adds body and helps the sauce thicken.
The step that matters
Let it thicken. Simmering reduces the liquid and the gravy's starch thickens the sauce. Stopping too early leaves it thin, while overcooking can make the tomatoes break down into a dull, pasty mixture.
Swap the apple
How well each one fits the dish's main ingredients (tomato, onion, lemon, butter):
- Avocadofits better
- Limefits better
- Mangofits better
- Applethe original
Fit is the average pairing score against tomato, onion, lemon, butter. 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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