Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Summer Soup
Ingredients
Directions
Make the broth
Place the beef shank in a kettle with 4 quarts of water.
Boil slowly for 6 hours, until the water is reduced to 2 quarts.
Finish the soup
An hour before serving, add the green corn, tomatoes, potatoes, and onions.
Add sweet herbs if desired.
Season with salt and pepper to taste.
Just before serving, mix the flour smoothly into the fresh cream and add it to the soup.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Corn + potatotop 5% of all pairsSmell alikestrongCooked together938 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Tomato + potatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Corn + tomatotop 6% of all pairsSmell alikestrongCooked together2,099 recipes
Shared aroma: 2-nonenal (fatty, green).
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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef shank
- Slow simmering releases its collagen and flavor into the water, forming the broth.
- Green corn
- Adds sweetness and body as it cooks into the soup.
- Tomatoes
- Add acidity and brightness that balance the rich broth.
- Potatoes
- Starch from the potatoes softens and thickens the soup slightly.
- Fresh cream
- Adds richness and a smooth, velvety texture.
- Flour
- Thickens the cream so it blends into the soup without lumps.
The step that matters
Adding the flour and cream mixture. Flour must be mixed smoothly into the cream before it goes in, because dry flour added directly to hot liquid clumps. Stirring it into cold cream first lets the starch disperse evenly, and adding it just before serving keeps the cream from curdling or boiling for long.
Swap the tomato
How well each one fits the dish's main ingredients (beef, corn, potato, onion, pepper, cream, flour):
- Chivefits better
- Okrafits better
- Capsicumfits better
- Tomatothe original
Fit is the average pairing score against beef, corn, potato, onion, pepper, cream, flour. 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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