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 batter
Beat the egg whites until stiff.
In a separate bowl, mix the egg yolks, flour, baking powder, milk, and salt.
Gently fold the beaten egg whites into the yolk mixture.
Cook
Heat a frying pan and add butter until melted.
Pour the batter into the pan and cook quickly without turning.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 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).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Whipped whites trap air for lift, while the yolks add richness and structure as the omelet sets.
- Flour
- Starch helps the batter set and gives the omelet body so it holds together.
- Magic baking powder
- Releases gas when heated, helping the omelet rise and stay light.
- Milk
- Adds moisture and softness to the batter as it cooks.
- Butter
- Fat coats the pan to prevent sticking and adds flavor and browning at the surface.
The step that matters
Gently fold the beaten egg whites into the yolk mixture. Folding keeps the air bubbles in the whipped whites intact. Stirring or beating deflates them, which leads to a flat, dense 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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