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 ↓
Vegetable Soup
Ingredients
Directions
Make the broth
Place the crushed soup bone in a pot with 1 gallon of cold water and cook for 2 hours.
Prepare the vegetables
Peel the tomatoes and slice them.
Stew the tomatoes until smooth.
Add the scraped corn to the tomatoes.
Remove the pot from heat.
Finish the soup
After 2 hours, add the cut potatoes to the pot and cook until soft.
Remove the soup bone.
Skim off any grease from the broth.
Add the corn and tomato mixture along with the onion to the pot.
Cook gently for 30 minutes.
Season with salt and pepper.
Strain the soup.
Serve.
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.
Photo for illustrative purposes only · Contact us to use it
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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Tomato + corntop 6% of all pairsSmell alikestrongCooked together2,099 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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
- Soup bone
- Simmers into the broth, adding body and savory flavor.
- Tomatoes
- Break down when stewed to give the soup acidity and a smooth body.
- Corn
- Adds natural sweetness and body to the soup.
- Potatoes
- Soften during cooking and their starch thickens the broth slightly.
- Onion
- Adds aromatic flavor to the broth.
The step that matters
Skim off any grease from the broth. Fat from the soup bone rises to the surface as the broth cooks. Removing it before the vegetables go in keeps the soup clean-tasting and prevents a greasy mouthfeel.
Swap the onion
How well each one fits the dish's main ingredients (tomato, corn, potato, pepper):
- Capsicumfits better
- Carrotfits better
- Okrafits better
- Onionthe original
Fit is the average pairing score against tomato, corn, potato, pepper. 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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