Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Boiled Potatoes
Ingredients
Directions
Prepare the potatoes
Wash potatoes and remove any eyes or black specks.
Cut a small piece of skin from the pointed or eyed ends.
Boil and dry
Place potatoes in a pot of boiling salted water, covering them completely.
Cover pot and simmer until a fork easily pierces the largest potato.
Drain potatoes thoroughly.
Let potatoes sit uncovered near the fire for five minutes to dry.
Shake potatoes occasionally while drying.
Mash and serve
If mashing, peel potatoes.
Mash potatoes in a tin, wood, or earthen vessel.
Mix in pepper, salt, a tablespoon of melted butter for every dozen potatoes, and enough hot milk or water to achieve a soft dough consistency.
Beat the mixture with a large fork.
Serve in a hot dish, shaping it into a smooth mound.
Optionally, place the dish in the oven to brown the top before serving.
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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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).
-
Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Starchy base that cooks until soft and mashes into a smooth, fluffy dough.
- Melted butter or dripping
- Adds fat for richness and a silky mouthfeel to the mashed potatoes.
- Hot milk or water
- Adds moisture so the mashed potatoes reach a soft, workable consistency.
The step that matters
Drain and dry the potatoes thoroughly. Excess water left on boiled potatoes dilutes the mash and makes it loose and watery. Letting them steam dry lets surface moisture evaporate, so the mash holds together and takes up butter and milk well.
Swap the potato
How well each one fits the dish's main ingredients (pepper, butter, milk):
- Potatothe original
- Capsicumfits about as well
- Tomatofits less well
- Asparagusfits less well
Fit is the average pairing score against pepper, butter, 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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