Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Omelet
Ingredients
Directions
Prepare the eggs
Beat the yolks and whites of the eggs separately.
Add the salt to the yolks.
Mix the whites and yolks together with the milk, cream, or water.
Cook and serve
Heat a small piece of butter or bacon fat in a pan until melted.
Pour the egg mixture into the pan.
Loosen the edges with a sharp knife as they solidify and fold the omelet into a half circle.
When cooked, turn the omelet out onto a plate and serve hot.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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 + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Milk + peppertop 22% of all pairsSmell alikemoderateCooked together26,984 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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 separated beating whips air into the whites for lightness.
- Milk, cream, or water
- Adds moisture so the omelet stays tender rather than dry and rubbery.
- Butter or bacon fat
- Greases the pan so the omelet releases cleanly and adds richness.
The step that matters
Loosen the edges as the omelet solidifies. Egg proteins set quickly once heated. Lifting the edges while the surface is still slightly moist lets uncooked egg flow beneath, so the omelet folds without tearing or overcooking.
“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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