Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Scrambled Eggs Wth Onions
Ingredients
Directions
Cook the eggs
Melt the butter in a skillet over medium heat and add the onion juice.
When the mixture is very hot, pour in the slightly beaten eggs, salt, and pepper.
Stir with a fork until the eggs are cooked to your liking.
Serve
Serve immediately on toast.
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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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 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).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Egg + peppertop 33% of all pairsSmell alikelowCooked together50,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Egg and pepper barely smell alike, yet cooks put them together in 50,580 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 soft curds that form the body of the scramble.
- Butter
- Adds fat for richness and keeps the eggs from sticking to the skillet.
- Onion juice
- Adds savory onion flavor that blends into the butter and eggs.
The step that matters
Stir with a fork until the eggs are cooked to your liking. Eggs proteins set as they heat, so stopping too late leaves them dry and rubbery while stopping too early leaves them runny. Stirring keeps curds small and even.
Swap the onion
How well each one fits the dish's main ingredients (butter, egg, pepper):
- Capsicumfits better
- Asparagusfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against 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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