Why it works: Onion and potato 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 stock
Boil the meat until tender to make stock.
Add rice to the stock and boil for 2 hours.
Add the vegetables
Slice the onions and potatoes thinly, then add them to the pot.
Boil again for 20 minutes.
Season and finish
Season with salt, cayenne pepper, and sugar.
Strain if desired.
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Rice + potatotop 7% of all pairsSmell alikestrongCooked together851 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Rice + oniontop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Meat
- Simmering it releases flavor and gelatin into the water, forming the body of the stock.
- Rice
- Its starch thickens the broth gradually as the grains soften during a long simmer.
- Onions
- Cooking softens their sharpness and adds sweet, savory aroma to the broth.
- Potatoes
- Their starch softens and thickens the broth, giving it a fuller texture.
The step that matters
Add rice to the stock and boil for 2 hours.. Rice keeps absorbing liquid and breaking down during a long simmer, so the soup thickens over time. Watch the consistency and add liquid if it becomes too thick.
Swap the onion
How well each one fits the dish's main ingredients (meat, rice, potato, pepper, sugar):
- Capsicumfits better
- Asparagusfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against meat, rice, potato, pepper, 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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