Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Herb Omelette
Ingredients
Directions
Prepare
In a bowl, beat the yolks and whites of the eggs with the cold water until well combined.
Add the salt, black pepper, parsley, onion, and butter or lard; mix well with a wooden spoon.
Cook
In an omelette pan, melt 2 ounces of butter or lard over medium heat.
Pour the egg mixture into the pan, tilting it to spread the eggs evenly.
Shake the omelette into the center, fold up the edges, and cook for about 5 minutes until set.
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 + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Parsley + buttertop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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 when heated, forming the body of the omelette.
- Butter or lard
- Adds richness and moisture, and keeps the eggs from sticking to the pan.
- Cold water
- Adds moisture that turns to steam, keeping the omelette light and tender.
- Chopped onion
- Adds mild savory flavor and aroma to the eggs.
The step that matters
Cook the omelette over medium heat until just set. Eggs turn tough and rubbery when overcooked, because the proteins tighten and squeeze out water. Cooking gently until just set keeps the omelette tender and moist.
Swap the onion
How well each one fits the dish's main ingredients (egg, pepper, parsley, butter):
- Shallotfits better
- Chivefits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against egg, pepper, parsley, 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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