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 ↓
To Boil Potatoes
Ingredients
Directions
Prepare
Select potatoes of similar size and wash them without peeling.
Place them in a pot and cover with water by about 1 inch.
Do not cover the pot with a lid.
When the water is nearly boiling, pour it off.
Replace it with cold water and a generous amount of salt.
Boil and dry
Boil medium-sized potatoes for about 30 minutes and large ones for about 1 hour, testing with a fork for doneness.
Once cooked, pour off the water and cover the pot with a folded napkin or flannel to let them dry for 15 minutes.
Peel the potatoes and serve them without skins.
For older potatoes, peel before boiling and remove blemishes.
Mash and serve
Mash while hot with a potato masher, adding butter, salt, and milk if desired.
Optionally, score and brown the mashed potatoes.
Pour hot cream with melted butter over them 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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + creamtop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide the starchy body that softens into the cooked texture of the dish.
- Fresh butter
- Adds fat and richness, carrying flavor and smoothing the mashed texture.
- Milk
- Adds moisture and softness to the mash when used.
- Hot cream
- Adds richness and moisture when poured over the potatoes before serving.
The step that matters
Pour off the water and let the potatoes dry. Excess surface water left on cooked potatoes dilutes flavor and makes them waterlogged. Drying them briefly under a cloth lets steam escape, giving a fluffier, more concentrated texture.
“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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