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 ↓
Omelets
Ingredients
Directions
Prepare
Break the eggs into a bowl, season with salt, and beat just enough to mix.
Heat the butter in a pan over high heat until melted.
Cook and serve
Quickly pour the eggs into the pan and shake it violently for a moment.
Gently stir the mixture with a fork, then roll it over using a spatula.
Serve immediately.
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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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + parsleytop 21% of all pairsSmell alikemoderateCooked together18,765 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set into the structure of the omelette as they cook, forming its body.
- Butter
- Coats the pan and adds richness and flavor to the eggs.
The step that matters
Gently stir the mixture with a fork, then roll it over using a spatula.. Eggs set quickly over high heat. Stirring keeps the curds small and tender, while rolling before the surface fully sets shapes the omelette without overcooking it into a dry, rubbery texture.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (egg, butter):
- Nutmegfits about as well
- Parsleythe original
- Capersfits about as well
- Tarragonfits less well
Fit is the average pairing score against egg, 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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