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Mock Turtle Soup

A soup made from calf's head, ham, vegetables, browned flour, eggs, lemons, spices, and broth.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 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 ↓

Mock Turtle Soup

Ingredients

Directions

Make the broth

  1. Boil the calf's head with the slice of ham until it falls apart; strain and let cool.

  2. Skim the fat off the cooled broth, then mix in the boiled vegetables and some meat from the head.

Finish the soup

  1. Boil the mixture for an hour before serving.

  2. Moisten the browned flour and stir it into the soup before adding the force-meat balls.

  3. After adding the force-meat balls, let the soup boil briefly before serving.

  4. In the tureen, add sliced hard-boiled eggs and sliced lemons.

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. Clove + peppertop 5% of all pairs
    Smell alikestrong
    Cooked together17,451 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  3. Mace + clovetop 6% of all pairs
    Smell alikelow
    Cooked together8,400 recipes

    Shared aroma: methyleugenol (clove, spice).

  4. Lemon + clovetop 10% of all pairs
    Smell alikestrong
    Cooked together8,150 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

Calf's head
Provides the meat and gelatin that give the soup its body and rich flavor.
Browned flour
Thickens the broth as its starch swells with heat, giving the soup body.
Butter
Adds richness and fat, carrying flavor and smoothing the texture.
Lemons
Add acidity that brightens the rich, heavy broth.
Hard-boiled eggs
Add texture and mild richness as a garnish-like addition in the tureen.

The step that matters

Moisten the browned flour before stirring it in. Dry flour clumps when added to hot liquid. Mixing it with a little cold liquid first lets the starch disperse evenly, so the soup thickens smoothly without lumps.

Swap the mace

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

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

Fit is the average pairing score against ham, flour, egg, lemon, clove, pepper, butter. 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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