Why it works: Egg and flour are a kitchen classic. They rank in the top 8% of all ingredient pairs, and 104,138 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Vermicelli Soup, White or Brown
Ingredients
Directions
Prepare the vermicelli
Place the vermicelli in a stew pan with cold water.
Bring the water to a boil.
Strain the vermicelli.
Rinse the vermicelli in cold water to prevent lumping.
Make the soup
In a pot, heat the broth.
Add the vermicelli to the broth.
Skim off any scum that rises to keep the soup clear.
For white soup, mix egg yolks, flour, and cream in a bowl.
Beat the mixture well.
Strain the mixture through a fine sieve.
Add the strained mixture to the soup while stirring.
Bring the soup to a boil.
Remove from heat.
Season with salt as needed.
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 aroma chemistry they share, and how many recipes mention both.
-
Egg + flourtop 8% of all pairsAroma overlaplowMentioned together104,138 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + creamtop 12% of all pairsAroma overlapmoderateMentioned together41,958 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Flour + creamtop 15% of all pairsAroma overlaplowMentioned together29,941 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
Egg and flour share little aroma chemistry, yet 104,138 recipes mention both: they likely 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
- Egg yolks
- Thicken the soup and add richness as they set gently with heat.
- Flour
- Stabilizes the cream and yolk mixture so it thickens without curdling.
- Cream
- Adds richness and a smooth, velvety texture to the soup.
- Vermicelli
- Provides the noodle body of the soup; rinsing keeps the strands from clumping.
- Broth
- Forms the liquid base that carries the flavor of the soup.
The step that matters
Add the strained mixture to the soup while stirring. Egg yolks can curdle if they meet boiling liquid too quickly. Stirring while adding the mixture disperses the heat evenly, and the soup should then be brought to a boil only after the mixture is fully combined.
“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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