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Sauce

Plain Brown Sauce

A simple brown sauce made with butter, flour, browning, lemon juice, water or stock, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and 124,287 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Plain Brown Sauce

Ingredients

Directions

  1. In a pan, brown the butter and flour together.

  2. Add the water or stock, lemon juice, salt, and browning.

  3. Stir until boiling.

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 aroma chemistry they share, and how many recipes mention both.

  1. Butter + flourtop 12% of all pairs
    Aroma overlaplow
    Mentioned together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + lemontop 16% of all pairs
    Aroma overlapmoderate
    Mentioned together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  3. Flour + lemontop 17% of all pairs
    Aroma overlapmoderate
    Mentioned together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
Fat that cooks with the flour to form a roux, adding richness and flavour.
Flour
Starch that thickens the liquid once it is cooked in the butter and then heated with water or stock.
Water or stock
Liquid that the flour starch swells in as it heats, forming the body of the sauce.

The step that matters

Browning the butter and flour together. Cooking the flour in fat drives off its raw taste and builds colour and nutty flavour. Heat that is too high or too long will scorch the roux, giving a bitter taste and dark specks.

Flavor stand-ins for the lemon

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

  1. Raisinbetter flavor fit
  2. Vanillabetter flavor fit
  3. Coconutbetter flavor fit
  4. Lemonthe original

Fit is the average pairing score against butter, flour. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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