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 ↓
Noodle Soup
Ingredients
Directions
Make the noodles
Break the egg and beat it lightly.
Add 1-2 cups of flour and ¼ teaspoon of salt, then knead until smooth.
Roll the dough into very thin sheets and dry on the board.
Roll up the sheet and cut into shreds, then dry for one hour.
Boil the shreds in salted water for ten minutes.
Make the soup
In a pot, boil 3 pints of milk with the sliced onion and a bit of mace.
Melt 2 tablespoons of butter and stir in 3 tablespoons of flour.
Add this mixture to the boiling milk and season with salt, pepper, and celery.
Beat 2 eggs lightly and stir them into the soup just before serving.
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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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Eggs
- Bind the dough and enrich the soup, adding body and richness when stirred in.
- Flour
- Gives the dough structure for noodles and thickens the milk into a smooth sauce.
- Milk
- Forms the creamy base of the soup.
- Butter
- Adds richness and, cooked with flour, helps thicken the soup.
The step that matters
Stir the beaten eggs into the soup just before serving. Eggs stirred into hot liquid can scramble into curds if the soup is too hot or boiled after adding them. Adding them at the end, off a hard boil, keeps the soup smooth and evenly enriched.
Swap the mace
How well each one fits the dish's main ingredients (egg, flour, milk, onion, butter, pepper, celery):
- Parsleyfits better
- Turmericfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against egg, flour, milk, onion, butter, pepper, celery. 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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