Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Cream of Spaghetti Soup, Savoy Style
Ingredients
Directions
Make the soup base
Melt the butter in a pot.
Stir in the flour and cook until frothy.
Add 1 quart of broth and stir until boiling.
Add the second quart of broth and let cook for 15 minutes.
Cook the spaghetti
Break the spaghetti into 1-inch lengths and cook in boiling salted water until tender.
Drain the spaghetti, rinse in cold water, and drain again.
Add the spaghetti to the soup.
Finish with egg and cheese
Beat the egg yolks and gradually mix in the grated Parmesan cheese and cream.
Stir this mixture into the soup, continuing to stir until the cheese melts and the egg thickens, but do not let it boil.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + parmesan cheesetop 9% of all pairsSmell alikemoderateCooked together4,163 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Butter
- Enriches the base and carries the flour, adding richness to the soup.
- Flour
- Thickens the broth into a smooth, body-rich base when cooked with the butter.
- Broth
- Forms the liquid body of the soup, carrying all the flavor.
- Egg yolks
- Thicken the finished soup into a creamy texture when gently heated.
- Parmesan cheese
- Adds savory, salty flavor and helps give the finished soup body.
- Cream
- Adds richness and a silky mouthfeel to the finished soup.
The step that matters
Adding the egg and cheese mixture. Egg yolks thicken by gentle heat, but boiling can scramble them into grainy curds. Stir steadily off a rolling boil so the custard-like mixture thickens smoothly and the cheese melts evenly.
“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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