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Sauce

Mushroom Sauce

A sauce made with butter, flour, stock, ketchup, mushrooms, onion, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and mushroom are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 12,525 recipes. Both carry trans-2-decenal, which smells waxy, orange. The science ↓

Mushroom Sauce

Ingredients

Directions

  1. Melt the butter in a pan and fry the onions until browned.

  2. Add the peeled and chopped mushrooms and cook for one minute.

  3. Stir in the flour and mix well.

  4. Pour in the stock and bring to a boil.

  5. Season to taste, add the ketchup, and simmer for five minutes before serving.

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. Butter + mushroomtop 7% of all pairs
    Smell alikemoderate
    Cooked together12,525 recipes

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

  2. Mushroom + oniontop 10% of all pairs
    Smell alikemoderate
    Cooked together10,626 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  3. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  4. Mushroom + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together13,580 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked 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

Butter
Adds fat and flavour for frying the onions and mushrooms.
Flour
Thickens the sauce as it cooks with the stock.
Stock or gravy
Forms the liquid base of the sauce.
Mushrooms
Provide the main flavour and earthy aroma of the sauce.

The step that matters

Stir the flour into the butter and vegetables before adding the stock. Cooking the flour briefly in the fat with the vegetables removes its raw taste and lets it thicken evenly once the stock is added. Adding liquid too soon can leave lumps.

Swap the onion

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

  1. Shallotfits better
  2. Capsicumfits better
  3. Chivefits better
  4. Onionthe original

Fit is the average pairing score against butter, flour, ketchup, mushroom, 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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