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 of the eggs well.
Add milk, salt, and pepper to the yolks and mix.
Beat the egg whites until stiff and dry.
Fold half of the egg whites into the yolk mixture until just combined.
Cook the omelet
Heat a clean, smooth pan and rub it with butter until bubbling.
Quickly pour the omelet mixture into the pan and spread it evenly.
Cook until slightly browned, then add the remaining egg whites on top.
Fold the omelet and let it dry on an oven grate.
Serve
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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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
- Whites trap air for lift, while yolks add richness and set to a tender structure when cooked.
- Milk
- Adds moisture and makes the omelet softer and more tender.
- Butter
- Greases the pan so the omelet releases cleanly and adds a rich flavour.
The step that matters
Fold the egg whites gently. Whipped whites hold the omelet's lift only if they are folded in gently and just until combined. Overmixing deflates the foam, leaving a dense, flat omelet.
“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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