Why it works: Butter and milk match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 81,222 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Potatoes a LA Creme
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.
Make the potatoes
Mash the potatoes until smooth.
Whip in butter, coarse sea salt, and milk with a fork.
Fold in the frothed egg white.
Heap the mixture onto a dish.
Bake and serve
Place in a 400°F (200°C) oven until they begin to color.
Serve immediately.
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 aroma chemistry they share, and how many recipes mention both.
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Butter + milktop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + milktop 4% of all pairsAroma overlapstrongMentioned together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Potato + buttertop 6% of all pairsAroma overlapstrongMentioned together6,445 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + eggtop 8% of all pairsAroma overlapstrongMentioned together118,511 recipes
Shared aroma: nonanal (fat, citrus).
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Milk + eggtop 9% of all pairsAroma overlapmoderateMentioned together88,465 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Form the bulk of the dish, giving a soft, starchy base that holds the cream.
- Butter
- Adds fat and richness, making the mash smooth and silky in texture.
- Milk
- Adds moisture so the mash becomes creamy and spreadable.
- Egg white
- Whipped to a froth, it adds lightness and helps the top set and puff in the oven.
The step that matters
Fold in the frothed egg white. Folding gently keeps the air bubbles in the egg white intact. Stirring vigorously deflates them, which makes the potatoes dense instead of light.
“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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