Why it works: Onion and tomato 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 ↓
Scrambled Eggs with Tomatoes
Ingredients
Directions
Make the tomato base
Melt the butter in a saucepan.
Add the grated onion, strained tomatoes, salt, white pepper, and sugar; cover and cook for 5 minutes.
Remove from heat and set aside.
Scramble and serve
Beat the eggs with a fork and add them to the tomato mixture.
Cook the eggs, breaking them into large curds as they cook.
Serve the scrambled eggs on the toasted bread.
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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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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 form the body of the dish.
- Strained tomatoes
- Provide moisture and a bright, acidic tomato flavour.
- Butter
- Adds richness and fat that carries flavour and keeps the eggs tender.
- Grated onion
- Adds savoury aroma and depth to the tomato base.
The step that matters
Cook the eggs, breaking them into large curds as they cook. Egg proteins set with heat, and cooking them too hot or too long makes them tough and watery. Removing the pan from heat when the eggs are still slightly glossy lets residual heat finish them gently.
Swap the white pepper
How well each one fits the dish's main ingredients (butter, onion, tomato, sugar, egg):
- Garlicfits better
- Cinnamonfits better
- Capersfits better
- White pepperthe original
Fit is the average pairing score against butter, onion, tomato, sugar, egg. 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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