Why it works: Mushroom and beef are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 3,232 recipes. Both carry 2,4-nonadienal, which smells fatty, green. The science ↓
Mushroom-toast, or Croute Aux Champignons
Ingredients
Directions
Prepare the mushrooms
Cut the stems from the mushrooms.
Peel the mushrooms.
Remove the fur from the mushrooms.
Make the mushroom sauce
Melt the butter in a saucepan over low heat.
Add the mushrooms to the melted butter.
Sprinkle the mushrooms with mace and cayenne.
Stew the mushrooms for 10-15 minutes, stirring often.
Add the flour to the mushrooms and stir until lightly browned.
Gradually pour in the gravy or beef broth.
Let the mushrooms stew for 2 minutes.
Season the mixture with salt and add a squeeze of lemon juice.
Toast and serve
Fry the bread in butter until light brown.
Grill the bread after buttering.
Pour the mushroom mixture over the prepared bread.
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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Mushroom + beeftop 4% of all pairsSmell alikemoderateCooked together3,232 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Mushroom + breadtop 10% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-nonenal (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
- Mushrooms
- Form the main body of the dish and release moisture as they stew.
- Butter
- Carries the flavor and helps the mushrooms brown gently in the pan.
- Flour
- Thickens the stewing liquid into a sauce that clings to the mushrooms.
- Gravy or beef broth
- Supplies the liquid base and savory depth for the mushroom sauce.
- Bread
- Provides a crisp, toasted base that holds the mushroom mixture.
The step that matters
Stirring the flour until lightly browned. Flour must be cooked briefly in the fat so it loses its raw taste and thickens evenly; stirring prevents scorching and lumps before the liquid is added.
Swap the mace
How well each one fits the dish's main ingredients (mushroom, butter, flour, beef, lemon, bread):
- Thymefits better
- Marjoramfits better
- Parsleyfits better
- Macethe original
Fit is the average pairing score against mushroom, butter, flour, beef, lemon, bread. 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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