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To Fry Beef Liver

A dish of beef liver fried in butter after being coated in salted flour.

From an old cookbook · modernised transcription
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Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

To Fry Beef Liver

Ingredients

Directions

Prepare

  1. Scald and peel the edges of the beef liver.

  2. Roll the liver in salted flour.

Cook

  1. Fry the liver in butter in a pan on the stove.

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. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Beef + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together10,847 recipes

    Shared aroma: 2-furfurylthiol (coffee, roasted).

  3. Beef + livertop 17% of all pairs
    Smell alikemoderate
    Cooked together431 recipes

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

  4. Liver + buttertop 19% of all pairs
    Smell alikemoderate
    Cooked together2,065 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Beef + flourtop 25% of all pairs
    Smell alikelow
    Cooked together10,677 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter 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

Beef liver
Is the main protein, cooked through and tender when fried briefly in butter.
Flour
Forms a thin coating that helps the liver brown and crisp when fried.
Butter
Conducts heat for frying and adds richness and browning to the surface.

The step that matters

Fry the liver in butter in a pan on the stove. Liver overcooks quickly and turns dry and grainy, so it should be fried briefly over steady heat until just cooked through. Its coating of flour browns through the Maillard reaction, which needs a hot pan but not prolonged cooking.

“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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