Why it works: Pepper and celery match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 16,012 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Cream of Potato Soup
Ingredients
Directions
Prepare the potatoes
Cook the potatoes until soft, then drain and mash them.
Add the heated milk and cream to the mashed potatoes.
Strain the mixture.
Thicken and serve
Combine the strained mixture with the beaten egg yolk.
Add seasoning.
Cook in a double boiler until the egg thickens, stirring constantly.
Serve immediately.
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.
Photo for illustrative purposes only · Contact us to use it
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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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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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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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Potato + creamtop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potato
- Provides the body and starch that give the soup its thick, creamy base.
- Milk
- Adds liquid and dairy richness, forming the soup's main base with the potato.
- Egg yolk
- Thickens the soup as it heats, through egg proteins setting gently in the warm liquid.
- Cream
- Adds fat for a richer, smoother mouthfeel.
The step that matters
Cook in a double boiler until the egg thickens, stirring constantly. Egg yolk proteins set at moderate heat, so gentle, constant stirring over indirect heat thickens the soup smoothly. Overheating or leaving it unstirred can scramble the yolk and make the soup grainy.
Swap the celery
How well each one fits the dish's main ingredients (potato, milk, cream, egg, pepper):
- Nutmegfits better
- Parsleyfits about as well
- Dillfits about as well
- Celerythe original
Fit is the average pairing score against potato, milk, cream, egg, pepper. 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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