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 ↓
Potato Pie
Ingredients
Directions
Make the filling
Scald the milk in a saucepan.
Grate the potatoes and stir them into the hot milk.
Add the butter to the mixture while it is still hot.
Allow the mixture to cool.
Add the beaten eggs.
Spice and sweeten to your taste.
Bake
Pour the filling into a pie crust and bake.
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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Milk + potatotop 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).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide the starchy body that thickens the filling into a soft, sliceable custard.
- Eggs
- Set the filling as they cook, binding it into a firm custard.
- Butter
- Adds richness and a smooth, tender mouthfeel to the filling.
- Milk
- Forms the liquid base that the potatoes and eggs set within.
The step that matters
Add the eggs after the mixture has cooled. Eggs scrambled by hot mixture turn grainy instead of blending smoothly. Cooling the filling first lets the eggs mix in evenly and set into a smooth custard when baked.
Swap the potato
How well each one fits the dish's main ingredients (milk, butter, egg, sugar):
- Potatothe original
- Sweet potatofits about as well
- Asparagusfits about as well
- Capsicumfits about as well
Fit is the average pairing score against milk, butter, egg, sugar. 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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