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 ↓
Boiled Asparagus with White Sauce
Ingredients
Directions
Prepare the asparagus
Trim the asparagus and cut it into equal lengths.
Wash the asparagus in cold water.
Place the asparagus in a saucepan and cover it with boiling water. Close the lid for a moment, then remove the lid.
Cook the asparagus
Let it boil for 20 minutes.
Make the white sauce
Melt the butter in a small saucepan and mix in the flour.
Gradually add 1½ cups of the boiling liquid from the asparagus, stirring until the mixture boils.
Add the milk and cook for 2 more minutes.
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 + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Asparagus + peppertop 10% of all pairsSmell alikemoderateCooked together1,968 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Asparagus + flourtop 12% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Asparagus
- The main vegetable, cooked in boiling water until tender.
- Butter
- Provides fat and richness, and forms the base of the sauce with the flour.
- Flour
- Thickens the sauce when cooked with melted butter and liquid.
- Milk
- Adds liquid and body to the white sauce.
- Cream
- Adds richness and smoothness to the sauce.
The step that matters
Adding the liquid to the roux. Adding the hot liquid gradually while stirring keeps the flour mixed in evenly, so the sauce thickens smoothly without lumps.
Swap the asparagus
How well each one fits the dish's main ingredients (butter, flour, milk, cream, pepper):
- Potatofits better
- Leekfits about as well
- Spinachfits about as well
- Asparagusthe original
Fit is the average pairing score against butter, flour, milk, cream, pepper. 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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