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 ↓
New Potatoes
Ingredients
Directions
Prepare the potatoes
Steam the potatoes in a saucepan with the cover off for 1-2 minutes to evaporate excess moisture.
Using a three-pronged fork, break the potatoes into pieces, or mash them with a wooden spoon.
Remove any black pieces from the potatoes.
Season and serve
Add the butter, salt, and black pepper to the potatoes and mix well.
Stir in the milk and heat over the fire until warm.
Serve in a very hot dish.
Optional variations
For variety, you can brown the potatoes in a Dutch oven.
Optionally, boil and chop a mild Spanish onion, then mix it with the potatoes.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Pepper + oniontop 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
- New potatoes
- Form the bulk of the dish, providing starchy body that breaks down into a soft mash.
- Butter
- Adds fat and richness, giving the mash a smooth texture and flavor.
- Milk
- Adds moisture so the mashed potatoes become creamy and spreadable.
The step that matters
Evaporating excess moisture after steaming. Potatoes left wet become soggy and dilute the flavor. Briefly steaming with the lid off lets surface water evaporate, so the mash holds together and absorbs butter and milk well.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (potato, butter, pepper, milk):
- Capsicumfits better
- Asparagusfits about as well
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against potato, butter, pepper, milk. 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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