Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Turtle Soup
Ingredients
Directions
Make the soup
Put the meat in a pot with water and boil.
Add the lemon, potato, onion, tomatoes, bay leaves, and parsley.
Boil all together for 3 hours.
Brown the flour in a pan, adding a little of the soup and butter.
Add the browned flour mixture to the pot and boil slowly for 2 hours.
Season and serve
In a tureen, place the chopped hard boiled egg, lemon slices, and chopped parsley.
Season the soup with Worcestershire sauce and coarse sea salt, then strain into the tureen.
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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Browned in butter, it thickens the soup and gives it a richer, nutty flavour.
- Butter
- Fat that is used to brown the flour, adding richness and flavour to the thickening.
- Tomatoes
- Add acidity and savoury depth to the broth as they simmer.
- Lemon
- Adds acidity and bright citrus flavour to the soup.
- Potato
- Breaks down during long simmering, adding body and mild starch to the broth.
The step that matters
Browning the flour. Flour must be cooked until it smells nutty and turns light brown before it goes into the pot. Undercooked flour tastes raw and pasty, and it will not thicken the soup as smoothly.
Swap the lemon
How well each one fits the dish's main ingredients (meat, potato, onion, tomato, parsley, flour, butter):
- Avocadofits better
- Limefits about as well
- Lemonthe original
- Coconutfits about as well
Fit is the average pairing score against meat, potato, onion, tomato, parsley, flour, 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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