Why it works: Milk and butter 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 ↓
Cream of Asparagus Soup
Ingredients
Directions
Make the stock
Bring the soup stock to a boil in a pot with the knuckle bone, onion, mace, and white pepper.
Boil the asparagus pieces in the stock for about an hour.
Remove the asparagus tips and set them aside.
Make the soup
Melt the butter in a separate pan and stir in the flour to make a roux.
Gradually add the rich milk to the roux, stirring until smooth and thickened.
Combine the thickened mixture with the soup stock and add the sugar, adjusting seasoning with salt and pepper.
Serve the soup hot, garnished with the reserved asparagus tips.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Asparagus + oniontop 9% of all pairsSmell alikestrongCooked together1,212 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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Milk + flourtop 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
- Provides the main vegetable flavour and body of the soup as it simmers in the stock.
- Butter
- Fat that combines with flour to form the roux, adding richness and body.
- Flour
- Thickens the soup by forming a roux with butter before the milk is added.
- Rich milk
- Forms the creamy base of the soup and, with the roux, gives it a smooth, thick texture.
- Soup stock
- Forms the liquid base of the soup and carries the flavour of the other ingredients.
The step that matters
Adding the milk to the roux. Adding the milk gradually while stirring keeps the roux smooth and prevents lumps, so the sauce thickens evenly before it is combined with the stock.
Swap the mace
How well each one fits the dish's main ingredients (asparagus, ham, sugar, onion, milk, butter, flour):
- Cinnamonfits better
- Capersfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against asparagus, ham, sugar, onion, milk, butter, flour. 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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