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 Omelet
Ingredients
Directions
Make the tomato base
Simmer the tomatoes in enough water to cover them for 20 minutes.
Add the finely chopped onion.
Add the crumbled bread.
Add the butter.
Finish the omelet
Beat the eggs.
Stir the beaten eggs into the mixture.
Season with salt and pepper to taste.
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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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
- Tomatoes
- Provide the main body, moisture and sweet-tart flavor of the dish.
- Eggs
- Bind the mixture and set on heating, giving the dish its structure and body.
- Bread
- Absorbs liquid from the tomatoes, helping thicken the mixture and give it body.
- Butter
- Adds richness and fat, carrying flavor and a smooth texture.
- Onion
- Contributes savory aroma and depth as it softens in the tomato base.
The step that matters
Stir the beaten eggs into the mixture. Eggs set when heated, so adding them to a hot mixture and stirring gently keeps them evenly distributed and tender rather than scrambled in lumps or overcooked and rubbery.
Swap the onion
How well each one fits the dish's main ingredients (tomato, bread, butter, egg, pepper):
- Capsicumfits better
- Asparagusfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against tomato, bread, butter, egg, pepper. 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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