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 ↓
Mashed Potatoes
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Peel the potatoes and soak them in cold water for 30 minutes.
Steam the potatoes over boiling water until tender.
Mash the potatoes in an earthen basin or bright tin pan.
Make the mash
Season with coarse sea salt and add a generous piece of butter.
Mix in 1 cup of rich milk until well combined.
Transfer to a deep dish and smooth the top.
Brown or fry
Optionally, add butter on top and place in a 400°F (200°C) oven to brown.
Alternatively, score the top with steel bars for a golden brown finish.
For a fried version, mold the mashed potatoes, immerse in hot lard, and fry until golden brown.
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 + 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Cooked starch gives the mash its body and soft, fluffy structure.
- Butter
- Adds fat for richness, smooth mouthfeel and buttery flavor.
- Rich milk
- Adds moisture and creaminess, loosening the mash into a smooth texture.
The step that matters
Mix in the milk until just combined. Overworking cooked potato starch releases gluey starch and makes the mash heavy and dense, so stop mixing once the milk is evenly incorporated.
“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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