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Brown Sauce

A savory sauce made with onion, flour, fat, brown meat stock, pepper, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Brown Sauce

Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Brown Sauce

Ingredients

Directions

Make the sauce

  1. Heat the fat in a pan and brown the onion.

  2. Add the flour and cook to make a brown roux.

  3. Pour in the brown stock and stir constantly until the sauce thickens.

Finish the sauce

  1. Strain the sauce to remove onion particles.

  2. Season with pepper and salt.

  3. If the sauce is not dark enough, add a few drops of vegetable flavoring or Worcestershire sauce.

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.

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.

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

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

  2. Onion + meattop 17% of all pairs
    Smell alikelow
    Cooked together6,364 recipes

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

  3. Onion + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together32,460 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Meat + peppertop 19% of all pairs
    Smell alikelow
    Cooked together8,777 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Flour
Cooked in the fat to form a roux that thickens the sauce.
Fat
Carries the browning of the onion and forms the base of the roux.
Brown meat stock
Liquid that, once thickened with the roux, becomes the body of the sauce.
Onion
Browned in the fat to add savory, toasted flavor to the sauce.

The step that matters

Stirring the stock into the roux. Adding the liquid while stirring constantly keeps the starch in the roux dispersed, so the sauce thickens smoothly instead of forming lumps.

Swap the onion

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

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

Fit is the average pairing score against flour, meat, 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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