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 ↓
Omelet
Ingredients
Directions
Prepare the eggs
Beat the yolks and whites of the eggs separately.
Add flour, salt, pepper, and milk to the egg mixture.
Cook
Melt butter in a frying pan over medium heat.
Pour the egg mixture into the pan; it will begin to bubble.
Lift the edges with a knife to prevent burning.
Once the eggs set, fold the omelet and shake the pan.
Slide the omelet onto a hot platter and 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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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 the structure of the omelet as they cook, and the whites and yolks add lift and richness.
- Milk
- Adds moisture and softness, keeping the omelet tender rather than dry.
- Butter
- Coats the pan and adds fat for flavor and to keep the omelet from sticking.
- Flour
- Helps thicken the egg mixture slightly, giving the omelet more body.
The step that matters
Lifting the edges while the eggs cook. Lifting the edges lets uncooked egg flow underneath so it sets evenly, and keeps the bottom from scorching before the top is set.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (egg, flour, pepper, milk, butter):
- Nutmegfits about as well
- Cinnamonfits about as well
- Parsleythe original
- Cardamomfits about as well
Fit is the average pairing score against egg, flour, pepper, milk, 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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