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 ↓
Cream of Fresh Mushrooms
Ingredients
Directions
Prepare the mushrooms
Wash and peel the mushrooms, then boil them in boiling water until tender.
Rub the mushrooms through a sieve using a potato masher.
Make the soup
In a thick saucepan, melt the butter and flour together until bubbling.
Gradually stir in the hot milk and boiling water, adding half a cup at a time and stirring smoothly.
Once all the milk and water are added, season with salt, white pepper, and grated nutmeg.
Stir in the mushroom puree, let it boil once, and then serve.
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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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mushroom + milktop 12% of all pairsSmell alikemoderateCooked together2,231 recipes
Shared aroma: 1-hexanal (fruit).
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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
- Fresh mushrooms
- Provide the main flavor and the body of the soup once pureed.
- Butter
- Adds richness and carries flavor, and with flour forms the base for thickening.
- Flour
- Thickens the milk mixture into a smooth, creamy sauce when cooked with butter.
- Milk
- Forms the creamy base of the soup and gives it a smooth, rich texture.
The step that matters
Adding the hot liquid to the roux gradually. Adding the milk and water a little at a time while stirring smoothly keeps the flour from clumping. Lumps form when liquid is poured in too quickly, and they are hard to remove once the soup has thickened.
Swap the white pepper
How well each one fits the dish's main ingredients (mushroom, butter, flour, milk, nutmeg):
- Cinnamonfits better
- Cardamomfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against mushroom, butter, flour, milk, nutmeg. 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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