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 ↓
Scrambled Eggs and Tomatoes
Ingredients
Directions
Prepare
Remove seeds from the tomato and finely mince it with the onion.
Cook
In a pan, melt butter and add the minced tomato and onion.
Season with salt and pepper, and cook until the onion is soft but not browned.
Add the beaten eggs and stir until nearly set.
Serve
Serve immediately within a circle of fried bread sippets.
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 + 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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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
- Eggs
- Set into soft curds that give the dish its body and structure.
- Tomato
- Adds moisture and a bright, acidic flavour to the eggs.
- Onion
- Adds sweetness and savoury depth when softened gently in butter.
- Butter
- Carries the vegetables and enriches the eggs with fat for a silky texture.
The step that matters
Add the eggs and stir until nearly set. Eggs turn from silky to rubbery and dry if overcooked, because the proteins tighten with too much heat. Removing the pan from the heat while the eggs are still glossy lets residual heat finish them gently.
Swap the onion
How well each one fits the dish's main ingredients (tomato, butter, pepper, egg, bread):
- Capsicumfits better
- Asparagusfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against tomato, butter, pepper, egg, 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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