Why it works: Asparagus and pepper are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 1,968 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Asparagus Soup
Ingredients
Directions
Prepare the asparagus
Cut the asparagus tips.
Cook the asparagus tips separately.
Chop the asparagus stalks.
Boil the chopped stalks until tender.
Sieve the boiled stalks.
Make the soup
Blend butter and flour with salt and pepper in a pan.
Add the reserved water and milk to the pan.
Let the mixture boil for 3 minutes.
Pour the soup over the asparagus tips in a tureen.
Serve
Serve immediately.
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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Asparagus + peppertop 10% of all pairsSmell alikemoderateCooked together1,968 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Asparagus + flourtop 12% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Asparagus + milktop 16% of all pairsSmell alikemoderateCooked together650 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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
- Provides the main flavour, and the sieved stalks give the soup its body.
- Milk
- Adds moisture and richness, making the soup smooth and creamy.
- Flour
- Thickens the liquid as its starch swells and sets when heated.
The step that matters
Boil the mixture for 3 minutes after adding the milk. Flour starch only thickens fully when it is heated enough to swell. Boiling for the full time cooks out the raw flour taste and gives the soup its body. Keep stirring so it does not catch on the base of the pan.
Swap the asparagus
How well each one fits the dish's main ingredients (milk, flour, pepper):
- Capsicumfits better
- Arrowrootfits better
- Potatofits better
- Asparagusthe original
Fit is the average pairing score against milk, flour, 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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