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Mock Turtle Soup

A soup made from calf's head, vegetables, bouquet garni, vinegar, cream, and egg yolk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Carrot and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,002 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Mock Turtle Soup

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare the broth

  1. Clean the calf's head and place it in a large pot.

  2. Add chopped onion, carrots, turnip, bouquet garni, and enough water to cover.

  3. Simmer for 3 hours until tender.

  4. Remove the head, strain the broth, and reserve the meat.

Finish the soup

  1. Chop the meat finely and return it to the broth.

  2. Stir in vinegar, salt, and pepper.

  3. In a separate bowl, mix cream and egg yolk, then temper with hot soup before adding to the pot.

  4. Heat gently without boiling, then 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. Carrot + turniptop 1% of all pairs
    Smell alikestrong
    Cooked together8,002 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Onion + turniptop 5% of all pairs
    Smell alikestrong
    Cooked together7,585 recipes

    Shared aroma: coumarin (sweet, hay).

  3. Carrot + peppertop 6% of all pairs
    Smell alikestrong
    Cooked together14,555 recipes

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

  4. Onion + carrottop 6% of all pairs
    Smell alikemoderate
    Cooked together21,601 recipes

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

  5. Turnip + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together5,252 recipes

    Shared aroma: coumarin (sweet, hay).

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 richness.
Cream
Adds fat and smoothness, mellowing the broth's flavor and giving a silky texture.
Egg yolk
Acts as a thickener when tempered and gently heated, giving the soup a creamy body.
Vinegar
Adds acidity that brightens the rich broth and balances its fatty flavor.

The step that matters

Heat gently without boiling. Egg yolk mixed into the soup curdles and turns grainy if it boils, and cream can separate. Tempering the yolk with hot soup first and then heating gently keeps the texture smooth.

Swap the turnip

How well each one fits the dish's main ingredients (onion, carrot, vinegar, pepper, cream, egg):

  1. Capsicumfits better
  2. Spinachfits better
  3. Potatofits about as well
  4. Turnipthe original

Fit is the average pairing score against onion, carrot, vinegar, pepper, cream, egg. 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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