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 ↓
Chicken or Turkey Bone Soup
Ingredients
Directions
Make the stock
Remove meat from bones and crush bones and carcass.
Cover with water and let simmer for three hours.
Strain the mixture, then add the onion and grated potato.
Return to heat and cook slowly for 30 minutes.
Finish and serve
Add lemon juice, salt, pepper, and curry powder.
Rub together butter and flour, then stir into the soup.
Press through a sieve, reheat, and serve.
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 + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Potato
- Grated potato breaks down during simmering and adds body and thickness to the soup.
- Flour
- Flour rubbed with butter thickens the soup as it heats, giving it a smoother body.
- Butter
- Butter adds richness and mouthfeel and helps the flour blend in without lumps.
- Lemon juice
- Lemon juice adds acidity that brightens the flavour of the rich broth.
The step that matters
Stirring the butter and flour into the soup. Flour added directly to hot liquid can clump. Rubbing it with butter first coats the starch particles so they disperse more evenly and thicken smoothly when stirred in.
Swap the lemon
How well each one fits the dish's main ingredients (meat, onion, potato, pepper, butter, flour):
- Avocadofits better
- Limefits about as well
- Coconutfits about as well
- Lemonthe original
Fit is the average pairing score against meat, onion, potato, pepper, butter, flour. 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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