Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Stewed Tomatoes
Ingredients
Directions
Prepare the tomatoes
Wash the tomatoes and pour boiling water over them; let stand for 5 minutes to easily remove the skins.
Cut off the stem end and divide the tomatoes into halves or quarters; place them in a china-lined kettle.
Stew
Set the kettle on the fire uncovered and cook for about 1 hour, then ladle out the juice and set it aside for soup.
Add the quartered onion to the tomatoes and simmer for 1 to 2 hours, cooking very slowly.
Finish and serve
Drain off any excess juice, then add a lump of butter, pepper, salt, and a pinch of sugar if needed; serve.
Alternatively, after peeling, add stale bread-crumbs and a quarter of a chopped onion to the tomatoes and cook for an additional hour.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + breadtop 10% of all pairsSmell alikemoderateCooked together1,013 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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 of the dish, breaking down into a soft, saucy stew as they cook.
- Onion
- Adds savory depth and sweetness as it softens into the stewing tomatoes.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the finished stew.
- Stale bread-crumbs
- Thicken the stew and soak up liquid, giving it a fuller body.
The step that matters
Cooking the tomatoes slowly. Simmering gently over a long period softens the tomatoes and concentrates their flavour. Too hard a boil can scorch the bottom of the kettle and make the stew taste burnt.
Swap the onion
How well each one fits the dish's main ingredients (tomato, butter, pepper, sugar, bread):
- Capsicumfits better
- Potatofits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against tomato, butter, pepper, sugar, bread. 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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