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 ↓
Plain Asparagus
Ingredients
Directions
Prepare the asparagus
Wash the asparagus well.
Cut off the hard ends.
Tie into small bundles.
Place the bundles upright in a kettle of water, leaving the tips above the water for the first 15 minutes.
Cover with boiling water and cook until tender.
Drain and place in a dish.
Make the sauce and serve
Melt the butter and pour it over the asparagus.
Rub together 1 tablespoon of butter and 1 tablespoon of flour in a saucepan.
Add 1 cup of cold milk and stir constantly until it reaches boiling point.
Season with salt and pepper.
Strain over the asparagus.
Beat an egg into the sauce just before removing it from the heat.
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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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).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Is the vegetable being cooked and served, so it forms the main body of the dish.
- Butter
- Adds richness and fat, and coats the asparagus with flavour.
- Flour
- Thickens the milk into a smooth sauce when cooked with the butter.
- Milk
- Forms the liquid base of the sauce, giving it body and a creamy texture.
The step that matters
Stirring the sauce as it heats. Flour thickens milk only when it is stirred constantly while heating; otherwise lumps form and the sauce can scorch on the bottom of the pan.
Swap the asparagus
How well each one fits the dish's main ingredients (butter, flour, milk, pepper):
- Potatofits better
- Capsicumfits better
- Chivefits about as well
- Asparagusthe original
Fit is the average pairing score against butter, flour, milk, 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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