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Calfs Head.

A boiled calf's head served with a butter, egg yolk, and lemon sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Calfs Head.

Ingredients

Directions

Prepare the head and brains

  1. Remove the brains from the calf's head and place them in cold water for 1 hour.

  2. Drain the brains and boil them in salted water for 20 minutes, then set aside.

  3. Wash the calf's head well and soak it in cold water for 1-2 hours to draw out the blood.

Cook the head

  1. Cover the head with hot water, season with pepper, salt, and mace, and boil gently for 2.5 hours.

Make the sauce and serve

  1. Melt the butter in a saucepan and whisk.

  2. Beat the egg yolks with the cream and flour, then whisk this mixture into the warm butter without boiling.

  3. Add the lemon juice to the sauce and pour it over the cooked head.

  4. Garnish the cooked head with chopped parsley.

  5. Serve.

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 + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together14,037 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

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

  4. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  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

Egg yolks
Thicken the sauce and add richness as they set gently in the warm butter.
Butter
Provides fat and a smooth, rich body to the sauce.
Cream
Adds moisture and softness, giving the sauce a smoother texture.
Flour
Helps stabilise the sauce so it thickens without curdling.
Lemon juice
Adds acidity that brightens the rich sauce.

The step that matters

Whisk the egg yolk mixture into the warm butter without boiling. Egg yolks thicken by gentle heat. If the sauce boils, the proteins scramble and the sauce turns grainy or curdled instead of smooth.

Swap the mace

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

  1. Tarragonfits better
  2. Nutmegfits better
  3. Thymefits better
  4. Macethe original

Fit is the average pairing score against pepper, butter, egg, cream, flour, lemon, parsley. 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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