Why it works: Butter and parsley are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 28,563 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Fried Eggs
Ingredients
Directions
Fry the eggs
Heat enough fat in a frying pan to nearly cover the eggs.
Break the eggs into a cup.
Gently slip the eggs into the hot fat.
Do not turn the eggs.
Dip the hot fat over the eggs.
For beaten eggs, strain them through a coarse colander into hot fat.
Drain the fat and serve on toast or with bacon.
Make the parsley vinegar sauce
Add more fat to the pan.
Let it brown.
Stir in an equal quantity of vinegar.
Let the mixture boil briefly.
Stir in chopped parsley.
Pour over the eggs.
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 + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Vinegar + parsleytop 16% of all pairsSmell alikemoderateCooked together6,477 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + parsleytop 21% of all pairsSmell alikemoderateCooked together18,765 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set in the hot fat to form the main body of the dish.
- Butter, olive oil, or cottonseed lard
- Fat that cooks the eggs and, when browned, adds rich flavor to the sauce.
- Vinegar
- Adds sharp acidity that balances the richness of the browned fat.
The step that matters
Do not turn the eggs. Turning breaks the delicate set white and disturbs the yolk. Leaving the eggs undisturbed in hot fat lets the white set firmly while the yolk stays intact.
Swap the parsley
How well each one fits the dish's main ingredients (egg, butter, vinegar):
- Tarragonfits better
- Parsleythe original
- Capersfits about as well
- Dillfits about as well
Fit is the average pairing score against egg, butter, vinegar. 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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