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 ↓
Dumplings with Potatoes and Prunes
Ingredients
Directions
Prepare the dumplings
Steam the potatoes until tender.
In a bowl, mix flour or bread crumbs with eggs to form a dough.
Shape the dough into dumplings.
Make the onion sauce
In a skillet, heat butter or oil and fry the chopped onion until brown, then remove from heat.
Stir in syrup and lemon juice or vinegar.
Assemble and serve
Combine the cooked potatoes and dumplings in a dish.
Mix in the stewed prunes.
Pour the syrup sauce over the top.
Serve warm.
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lemon + potatotop 12% of all pairsSmell alikemoderateCooked together2,230 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + peartop 13% of all pairsSmell alikemoderateCooked together942 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Butter + potatotop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Flour or bread crumbs
- Provides the starch and body that hold the dough together.
- Eggs
- Bind the dough so the dumplings keep their shape while cooking.
- Potatoes
- Supply the soft, starchy bulk that gives the dumplings their tender texture.
- Onion
- Browning in fat builds sweet, savory aroma and depth of flavor.
- Syrup
- Adds sweetness and a glossy, sticky body to the sauce.
- Prunes
- Contribute sweetness, dark fruit flavor and moisture to the finished dish.
The step that matters
Browning the onion. Frying the onion until brown lets sugars and amino acids react, creating deep, sweet flavor. Stopping at pale gold leaves it bland, while going too far turns it bitter and acrid.
Swap the onion
How well each one fits the dish's main ingredients (flour, egg, butter, syrup, lemon, potato, pear):
- Chivefits better
- Shallotfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against flour, egg, butter, syrup, lemon, potato, pear. 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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