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Soup

Old-fashioned Mock Turtle

A soup made from calf's head, butter, flour, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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 cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Old-fashioned Mock Turtle

Ingredients

Directions

Prepare the head

  1. Remove the bones and fragments from the calf's head and cool it.

  2. Place the head in a large soup pot with water and bring to a boil.

  3. Skim off any fat that rises to the top.

  4. Cut the meat into strips or dice.

Finish the soup

  1. Thicken the broth with butter and flour when it boils.

  2. Add cayenne pepper and ground mace sparingly, adjusting to taste.

  3. Simmer for 1 hour and 15 minutes to 1 hour and 30 minutes, stirring often.

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. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Pepper + macetop 16% of all pairs
    Smell alikelow
    Cooked together12,257 recipes

    Shared aroma: myristicin (spice, warm).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

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

  5. Butter + macetop 22% of all pairs
    Smell alikelow
    Cooked together11,405 recipes

    Shared aroma: linalool (floral, citrus).

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

Calf's head
Provides the meat and gelatin that give the soup its body and rich texture.
Fresh butter
Enriches the broth with fat and carries flavour, rounding out the soup.
Fine flour
Thickens the broth when cooked with butter, giving it a smoother body.

The step that matters

Thicken the broth with butter and flour when it boils. Flour added to hot liquid can clump; cooking it with the butter first, then whisking it in, helps it dissolve evenly and thicken smoothly.

Swap the mace

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

  1. Parsleyfits better
  2. Turmericfits better
  3. Nutmegfits better
  4. Macethe original

Fit is the average pairing score against butter, flour, 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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