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
Prepare the potatoes
Peel the potatoes quickly and remove any specks.
While still hot, press the potatoes through a colander or mash them with a strong wooden fork.
Make the mash
Melt the butter with the milk or cream in a clean saucepan.
Add the potatoes and sprinkle with salt.
Stir over gentle heat until well mixed and very hot.
Serve
Serve directly, or heap in a dish and brown under the fire, or mold and brown in the oven.
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
- Provide the starchy bulk that gives mashed potatoes their body and fluffy texture.
- Butter
- Adds fat for richness and a smooth, silky mouthfeel.
- Milk or cream
- Adds moisture and softness, and helps the mash turn smooth and creamy.
The step that matters
While still hot, press or mash the potatoes. Potatoes turn gluey and heavy when cooled or overworked, because starch cells release more starch when broken up. Mashing while hot keeps the texture light and even.
“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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