Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Fried Eggs and Tomato Sauce
Ingredients
Directions
Cook the eggs
Melt the butter over medium heat in a skillet.
Crack the eggs into the skillet and cook until the whites are set.
Make the sauce
Heat the tomato sauce in a separate pot.
Season the sauce with salt and pepper.
Serve
Serve the fried eggs topped with warm tomato sauce.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sauce + buttertop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Tomato + saucetop 15% of all pairsSmell alikelowCooked together5,469 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Sauce and butter barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set into a tender structure as the whites cook, forming the main body of the dish.
- Butter
- Adds fat for richness and helps prevent the eggs from sticking to the skillet.
- Tomato sauce
- Provides moisture and acidity that contrast with the rich, savory eggs.
The step that matters
Cook the eggs until the whites are set. Medium heat lets the whites set gently while the yolks stay soft. Higher heat can make the whites brown, toughen, or turn rubbery at the edges.
Swap the tomato
How well each one fits the dish's main ingredients (egg, sauce, pepper, butter):
- Capsicumfits better
- Asparagusfits better
- Shallotfits about as well
- Tomatothe original
Fit is the average pairing score against egg, sauce, pepper, 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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