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
Plunge the tomatoes into boiling water to remove the skins.
Drain and peel the tomatoes, then cut them into small pieces.
Cook
Add the chopped onion and cook over moderate heat for a long time to improve the flavor.
Add a pinch of baking soda.
Add butter and seasoning.
Finish
Optionally, thicken with cracker crumbs or bread crumbs.
Optionally, sweeten with sugar.
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).
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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 + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Form the body of the dish and supply most of its liquid and acidity.
- Onion
- Adds savory sweetness and aroma as it softens during long cooking.
- Butter
- Adds fat and rounds out the flavor of the cooked tomatoes.
- Baking soda
- Neutralizes some of the tomatoes' acidity, mellowing the flavor and taste.
- Cracker crumbs or bread crumbs
- Absorb liquid and thicken the stewed tomatoes.
The step that matters
Cooking the onion over moderate heat for a long time. Slow cooking softens the onion and develops its sweetness and depth. Heat that is too high can scorch the sugars and leave a bitter taste, while too short a cook leaves the onion sharp and raw.
Swap the onion
How well each one fits the dish's main ingredients (tomato, butter, bread, sugar):
- Capsicumfits better
- Potatofits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against tomato, butter, bread, sugar. 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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