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Green Turtle Soup

A soup made from turtle meat, herbs, onions, and lemon, thickened with flour and finished with Madeira.

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 ↓

Green Turtle Soup

Ingredients

Directions

Prepare the turtle

  1. Remove the entrails from the turtle.

  2. Cut the coarser parts of the meat and bones.

Make the soup

  1. In a large pot, add 4 quarts of water, the turtle parts, herbs, onions, pepper, and salt.

  2. Stew slowly for 4 hours without letting it stop boiling.

  3. Strain the soup.

  4. Add the finer parts of the turtle and the green fat, which has been simmered for 1 hour in 2 quarts of water.

  5. Thicken the soup with brown flour.

  6. Return the soup to the pot.

  7. Simmer gently for another hour.

  8. If there are eggs in the turtle, boil them separately for 4 hours.

Finish and serve

  1. Add the boiled eggs to the soup before serving.

  2. If not using eggs, add Force Meat Balls.

  3. Stir in the lemon juice and Madeira.

  4. Beat the soup well.

  5. Serve hot.

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. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  3. Onion + meattop 17% of all pairs
    Smell alikelow
    Cooked together6,364 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Onion + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together32,460 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Turtle
Provides the main meat and bones that give the soup its body and flavour.
Brown flour
Thickens the soup as its starch swells in the hot liquid.
Madeira
Adds sweetness and aromatic depth to the finished soup.
Lemon juice
Adds acidity that brightens the rich, heavy broth.
Onions
Contribute sweetness and savoury depth to the stock as they simmer.

The step that matters

Stew slowly without letting it stop boiling. Turtle meat and bones need long, sustained simmering to release gelatin and flavour into the broth. Letting the pot stall or boil too hard can leave the meat tough and the broth cloudy or greasy.

Swap the onion

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

  1. Shallotfits better
  2. Okrafits better
  3. Spinachfits better
  4. Onionthe original

Fit is the average pairing score against lemon, pepper, flour, meat. 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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