Why it works: Milk and butter 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 with Milk
Ingredients
Directions
Prepare the potatoes
Boil the potatoes until tender.
Let the potatoes cool slightly.
Slice the potatoes.
Cover the sliced potatoes with a clean cloth.
Make the sauce
Melt the butter over medium heat.
Stir in the flour with a wooden spoon.
Gradually add the warm milk, seasoning with salt, pepper, and nutmeg.
Bring the sauce to a boil.
Combine and serve
Add the sliced potatoes to the sauce.
Let them gently boil for about 15 minutes.
In a bowl, mix the egg yolks with the remaining milk.
Pour this mixture into the saucepan.
Stir until thickened.
Serve the dish hot.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Potato + nutmegtop 8% of all pairsSmell alikemoderateCooked together1,052 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, 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, absorbing the sauce and giving it body when sliced and simmered.
- Butter
- Forms the fat base of the sauce, carrying flavor and giving a rich mouthfeel.
- Flour
- Thickens the melted butter into a roux that gives the milk sauce its body.
- Milk
- Forms the liquid of the sauce, which thickens as the starch gelatinizes during heating.
- Eggs
- Egg yolks enrich and further thicken the sauce as they set with gentle heat.
The step that matters
Stir in the egg mixture gently and keep the heat low. Egg yolks can curdle or turn grainy if they overheat. Adding them to a hot sauce and stirring steadily, without boiling, lets them thicken smoothly.
Swap the potato
How well each one fits the dish's main ingredients (egg, milk, cream, butter, flour, pepper, nutmeg):
- Spinachfits about as well
- Potatothe original
- Leekfits about as well
- Chivefits about as well
Fit is the average pairing score against egg, milk, cream, butter, flour, pepper, nutmeg. 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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