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Mock Turtle Soup

A soup made from calf's head, beef, Madeira wine, cayenne pepper, lemon juice, salt, and egg balls.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Pepper and lemon 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 ↓

Mock Turtle Soup

Ingredients

Directions

Make the stock

  1. Bring 2 quarts of cold water to a boil in a large pot.

  2. Skim the surface and keep it gently boiling until the calf's head is tender.

  3. Carefully lift the head out with a slotted spoon and set it aside to cool.

  4. Strain the stock through a fine sieve or cloth.

  5. Once cold, remove the grease and clarify it with the scraped beef.

Finish the soup

  1. Cut some of the calf's head into 1‑inch pieces and add them to the clarified stock along with Madeira, cayenne, lemon juice, and salt.

Make the egg balls and serve

  1. Pound the hard‑boiled eggs and egg yolks in a mortar, then rub through a fine sieve.

  2. Dust a board with flour.

  3. Roll the egg mixture into marble‑sized balls.

  4. Poach the balls carefully.

  5. Add the egg balls to the soup just before serving.

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

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

  2. Beef + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together18,971 recipes

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

  3. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Lemon + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

Egg and flour barely smell alike, yet cooks put them together in 106,462 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 gelatin and body, giving the stock a rich, full texture as it simmers.
Scraped beef
Clarifies the stock, collecting particles so the finished soup is clear.
Hard boiled eggs
Form the body of the egg balls, giving them a firm, slightly crumbly texture.
Egg yolks
Add richness and fat, binding the pounded egg mixture into smooth balls.
Madeira wine
Adds sweetness and aromatic depth to the soup.
Lemon juice
Adds acidity that brightens the rich stock.

The step that matters

Clarifying the stock with scraped beef. Beef mixed into cold stock traps fine particles as it heats and is strained off, so the soup stays clear. Removing grease while the stock is cold lets fat solidify on top for easy skimming, which keeps the broth clean-tasting.

Swap the lemon

How well each one fits the dish's main ingredients (beef, madeira wine, pepper, egg, flour):

  1. Lemonthe original
  2. Raisinfits about as well
  3. Limefits less well
  4. Cherryfits less well

Fit is the average pairing score against beef, madeira wine, pepper, egg, flour. 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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