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 ↓
Asparagus Soup
Ingredients
Directions
Prepare the asparagus
Cut the heads off the asparagus and set aside in a cup.
Chop the stalks and add them to the chicken stock.
Boil the stalks in the stock for one hour.
Boil the reserved asparagus heads in 1 cup of salted water until tender.
Make the soup
Melt the butter in a stew pan and mix in enough flour to create a paste.
Gradually stir in the milk and cook until thickened.
Strain the chicken stock.
Stir the strained stock into the milk mixture.
Season with salt and pepper to taste.
Stir in the cream and the reserved asparagus heads before serving.
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.
Photo for illustrative purposes only · Contact us to use it
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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Chicken + asparagustop 11% of all pairsSmell alikemoderateCooked together539 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Butter and flour
- Form a roux that thickens the milk into a smooth, body-rich base.
- Milk
- Forms the creamy base of the soup and thickens with the roux.
- Asparagus
- Provides the main vegetable flavor and, from the stalks, body to the stock.
- Chicken stock
- Carries the asparagus flavor and forms the liquid base of the soup.
- Cream
- Adds richness and a silkier mouthfeel at the end.
The step that matters
Gradually stir in the milk and cook until thickened. Adding milk all at once to a flour-butter paste can leave lumps. Adding it gradually while stirring keeps the starch evenly dispersed, so the base thickens smoothly.
Swap the asparagus
How well each one fits the dish's main ingredients (chicken, butter, milk, flour, pepper, cream):
- Potatofits better
- Capsicumfits about as well
- Leekfits about as well
- Asparagusthe original
Fit is the average pairing score against chicken, butter, milk, flour, pepper, cream. 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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