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 ↓
Potatoes for Breakfast
Ingredients
Directions
Make the sauce
Slice the cold boiled potatoes.
In a saucepan, melt the butter over medium heat.
Once bubbling, stir in the flour and cook for a moment.
Pour in the milk or cream, and add salt and pepper.
Stir until it boils, then add the sliced potatoes.
Heat and serve
Heat until the potatoes are thoroughly hot, then serve.
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 + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the sauce with fat and adds a rich, savory flavor.
- Flour
- Thickens the melted butter and milk into a smooth, lightly bound cream.
- Milk or cream
- Forms the liquid base of the sauce, giving it body and richness.
- Cold boiled potatoes
- Provide the starchy bulk of the dish, absorbing the cream sauce as they heat.
The step that matters
Stir the flour into the butter before adding the milk. Cooking the flour briefly in the melted butter forms a roux, which coats the starch granules so they disperse evenly in the liquid. Adding milk without this step can leave lumps and a floury taste.
Swap the potato
How well each one fits the dish's main ingredients (butter, flour, milk, pepper):
- Potatothe original
- Capsicumfits about as well
- Chivefits less well
- Shallotfits less well
Fit is the average pairing score against butter, flour, milk, pepper. 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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