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 ↓
Potato Hillocks
Ingredients
Directions
The book gives no oven temperature. The 400°F in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Boil the peeled potatoes in water for 20-25 minutes until fork-tender.
Drain the water and let the potatoes steam for 1-2 minutes.
Mash the potatoes with a wire beater, adding salt and butter.
Gradually mix in hot milk until smooth and fluffy.
Shape and bake
Shape the mixture into small conical heaps and place on a greased pan.
Bake in a very hot oven (400°F/200°C) until browned, basting with butter.
Serve
Transfer to a hot platter and 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 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).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 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
- Provide the starchy bulk that mashes into the soft body of the hillocks.
- Butter
- Adds richness and flavor, and browns on the surface during baking.
- Hot milk
- Adds moisture and softness so the mash becomes smooth and fluffy.
- Raw egg
- Adds structure and binding to help the shaped heaps hold their form.
The step that matters
Bake in a very hot oven until browned. Baking at high heat sets the outside of the shaped mash and drives browning, while basting with butter adds color and flavor. Too low a temperature dries the heaps without browning them.
Swap the potato
How well each one fits the dish's main ingredients (butter, milk, egg):
- Potatothe original
- Asparagusfits about as well
- Chivefits less well
- Leekfits less well
Fit is the average pairing score against butter, milk, egg. Candidates are from the same food group and used in at least 100 recipes.
“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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