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Calf's Liver and Bacon

A dish of sliced calf liver sautéed with bacon, onion, and a lemon‑flavored sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Lemon and pepper 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 ↓

Calf's Liver and Bacon

Ingredients

Directions

Prepare

  1. Soak the liver in cold water for 15 minutes, then wipe dry and cut into strips 1 inch wide and 3 inches long.

  2. Cut thinner strips of bacon and fry them in their own fat for 3 minutes. Remove and keep hot.

  3. Fry a sliced onion in the same fat with the liver.

  4. Season the liver with salt, pepper, and dredge in flour before adding it to the pan.

Make the sauce

  1. Strain the fat, return it to the pan, and add 1 cup of hot water, the butter rubbed into the flour, and the lemon juice. Bring to a boil.

Serve

  1. Once cooked, arrange the liver in two rows on a serving dish, placing a strip of bacon between each piece.

  2. Pour the sauce over the liver and serve with mustard.

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. Lemon + peppertop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

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

  2. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Liver + oniontop 15% of all pairs
    Smell alikelow
    Cooked together1,420 recipes

    Shared aroma: furaneol (caramel, strawberry).

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

Liver
Forms the main body of the dish, cooking to a tender, meaty texture when fried briefly.
Bacon
Adds savory, salty flavor and rendered fat used for frying the liver and onion.
Flour
Coats the liver so it browns and thickens the sauce when combined with butter.
Butter
Adds richness and body to the sauce when worked into the flour.
Lemon juice
Adds acidity that brightens the rich liver and fat in the sauce.

The step that matters

Dredging and frying the liver. Liver is lean and overcooks quickly, becoming dry and grainy. A light flour coating helps it brown, while brief frying over steady heat keeps it tender.

Swap the onion

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

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

Fit is the average pairing score against liver, lemon, flour, butter, 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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