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
Peel and boil the potatoes until tender.
Drain and mash the potatoes until smooth.
Season and shape
Mix in salt, butter, and milk or cream until well combined.
Mold the mashed potatoes into your desired shape.
Brown and serve
Brown the molded potatoes in a 400°F (200°C) oven until golden.
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).
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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
- Starch gives the mash its body and structure once cooked and mashed.
- Butter
- Adds fat for richness, flavor, and a smooth, silky mouthfeel.
- Milk or cream
- Adds moisture and creaminess, loosening the mash for a soft texture.
The step that matters
Mashing the potatoes. Working cooked potatoes too vigorously ruptures starch cells and releases starch, which makes the mash gluey and gummy. Mash until smooth, then stop, and mix in the dairy gently.
“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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