Why it works: Butter and milk 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 ↓
Macaroni with Bechamel Sauce
Ingredients
Directions
Cook the pasta
Boil the macaroni in salted water until tender, then drain.
Make the sauce
In a saucepan, melt the butter over medium heat, add the flour, and stir to form a roux.
Gradually whisk in the milk, cooking until the sauce thickens.
Combine and serve
Combine the drained macaroni with the sauce, mix well, 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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and flour 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
- Macaroni
- Forms the bulk of the dish and gives it its chewy, tender body.
- Butter
- Carries flavour and, with flour, forms the roux that thickens the sauce.
- Flour
- Thickens the sauce by absorbing liquid when cooked with the butter into a roux.
- Milk
- Forms the liquid base of the sauce, which thickens as it cooks and gives it creaminess.
The step that matters
Cooking the milk into the roux. Adding milk gradually while whisking keeps the starch in the roux evenly dispersed, so the sauce thickens smoothly without lumps. Cooking it until it thickens lets the starch gelatinise fully, which gives the sauce its body.
“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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