Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Egg Soup
Ingredients
Directions
Make the broth
Boil the meat and bones in sufficient water to make a good soup.
Add the juice of one lemon and sugar to taste for a sweet and sour flavor.
Strain the soup.
Add the eggs
Break each egg into the soup separately.
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 + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Meat + eggtop 22% of all pairsSmell alikemoderateCooked together6,432 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Meat + lemontop 28% of all pairsSmell alikelowCooked together2,817 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
- Their proteins set in the hot broth, forming tender pieces that thicken the soup slightly.
- Lemon juice
- Adds acidity, giving the soup its sour flavor.
- Sugar
- Adds sweetness that balances the sourness of the lemon.
- Meat with bones
- Bones and meat release flavor and gelatin into the water, giving the broth body and savory depth.
The step that matters
Break each egg into the soup separately. Egg whites set quickly in hot liquid. Cracking each egg into the soup on its own keeps the pieces intact and prevents the whites from clumping together.
Swap the lemon
How well each one fits the dish's main ingredients (meat, egg, sugar):
- Vanillafits better
- Raisinfits better
- Lemonthe original
- Figfits about as well
Fit is the average pairing score against meat, egg, sugar. 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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