Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Mock Turtle Soup
Ingredients
Directions
Prepare the stock
Prepare the calf's head and place it in a pot with the veal and beef.
Add 1 pint of cold water.
Let it sit by the fire for 1 hour.
Fry the vegetables in ½ lb of butter until golden brown.
Add the fried vegetables, herbs, ham, spices, and 4 quarts of cold water to the pot.
Bring the mixture to a boil.
Skim off any foam.
Add the Marsala.
Simmer for 2 hours, skimming frequently.
Finish the soup
Remove the head.
Pull out the bones.
Press the meat between two dishes with a weight until cool.
Return the bones and trimmings to the pot.
Simmer for 4 hours, skimming constantly.
Make the thickening
Knead ½ lb of fresh butter with 5 tablespoons of flour until slightly browned.
Add spices to the butter‑flour mixture.
Mix well.
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.
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Carrot + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Celery + carrottop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + turniptop 2% of all pairsSmell alikemoderateCooked together4,418 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
- Gives the soup its gelatin, body and rich mouthfeel as it simmers.
- Butter
- Fat that carries flavor and, browned with flour, adds nutty color and aroma.
- Flour
- Thickens the butter mixture so it can give body to the finished soup.
- Marsala
- Adds wine acidity and aromatic depth to the simmering stock.
- Veal and beef
- Lean meats that build savory, meaty flavor in the stock.
- Onions
- Fried until golden, they add sweetness and deep savory flavor to the base.
The step that matters
Browning the butter and flour. Cooking the flour in butter until only slightly browned toasts it for color and nutty flavor while thickening. Overheating scorches it, which gives bitter taste and dark specks.
Swap the onion
How well each one fits the dish's main ingredients (veal, beef, ham, celery, carrot, turnip, parsley):
- Leekfits better
- Parsnipfits better
- Okrafits about as well
- Onionthe original
Fit is the average pairing score against veal, beef, ham, celery, carrot, turnip, parsley. 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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