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Mushroom-toast, or Croute Aux Champignons

A toasted bread slice topped with sautéed mushrooms, butter, mace, cayenne, flour, broth, and lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Mushroom-toast, or Croute Aux Champignons

Ingredients

Directions

Make the mushroom sauce

  1. Melt the butter in a saucepan over low heat.

  2. Add the mushrooms, mace, and cayenne; stir and cook for 10-15 minutes.

  3. Sprinkle in the flour and stir until lightly browned.

  4. Gradually pour in the gravy or broth, stirring gently.

  5. Cook for an additional 2 minutes, then season with salt and lemon juice.

Toast and serve

  1. Fry the bread slice in butter until light brown, or grill it instead.

  2. Spoon the mushroom mixture over the prepared bread and serve.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Mushroom + beeftop 4% of all pairs
    Smell alikemoderate
    Cooked together3,232 recipes

    Shared aroma: 2,4-nonadienal (fatty, green).

  3. Butter + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  4. Mushroom + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together12,525 recipes

    Shared aroma: trans-2-decenal (waxy, orange).

  5. Pepper + beeftop 10% of all pairs
    Smell alikemoderate
    Cooked together18,971 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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 topping and release moisture and savory flavor as they cook.
Butter
Carries the cooking of the mushrooms and adds richness to the sauce and bread.
Flour
Thickens the cooking liquid into a sauce once browned and combined with the broth.
Gravy or beef broth
Supplies the liquid that becomes the sauce and adds savory, meaty flavor.
Bread
Provides a crisp, golden base that holds the mushroom topping.

The step that matters

Gradually pour in the gravy or broth, stirring gently.. Adding liquid slowly while stirring lets the flour disperse evenly, so the sauce thickens smoothly without lumps.

Swap the mace

How well each one fits the dish's main ingredients (mushroom, butter, pepper, flour, beef, lemon, bread):

  1. Thymefits better
  2. Parsleyfits better
  3. Marjoramfits better
  4. Macethe original

Fit is the average pairing score against mushroom, butter, pepper, 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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