Why it works: Bread and butter 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 ↓
Tomato Omelette
Ingredients
Directions
Prepare the filling
Peel and chop the tomatoes finely.
Add salt, pepper, and minced onion to the tomatoes.
Stir in the grated bread.
Beat the eggs until foamy and mix them into the tomato mixture.
Cook and serve
Heat a greased pan over medium heat and pour in the mixture.
Stir rapidly until it begins to thicken.
Let it brown for a few minutes on the bottom, then fold it in half and 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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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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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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Tomato + breadtop 10% of all pairsSmell alikemoderateCooked together1,013 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pepper + oniontop 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
- Eggs
- Set when heated, binding the mixture into a tender omelette.
- Tomatoes
- Add moisture and a fresh acidity that brightens the eggs.
- Grated bread
- Absorbs tomato liquid, helping the omelette hold together and stay soft.
- Onion
- Adds savory sweetness and aroma as it softens in the mixture.
The step that matters
Stirring rapidly until it begins to thicken. Constant stirring breaks the egg into small curds while it sets, giving a soft texture; if left still, the bottom overcooks before the top sets.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, bread, egg, butter):
- Capsicumfits better
- Asparagusfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, bread, egg, 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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