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 Cream Pie
Ingredients
Directions
Prepare the filling
Bake good mealy potatoes and mash them through a sieve.
Mix the warm mashed potatoes with butter, then add sugar, milk, and flavoring.
Separate the eggs; beat yolks and whites until light.
Bake and serve
Stir the beaten eggs into the mixture just before baking.
Bake in pie crusts and sift powdered sugar over when done.
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).
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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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Sugar + buttertop 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
- Mashed potatoes
- Provide the body and bulk that give the pie its creamy, custard-like filling.
- Butter
- Adds richness and fat, contributing to a smooth, tender texture.
- Sugar
- Sweetens the filling and helps it brown lightly in the oven.
- Eggs
- Set during baking to bind the filling and add structure and lift.
- Milk and brandy or wine
- Add moisture and liquid to loosen the filling, with the spirit adding aroma.
The step that matters
Stir the beaten eggs in just before baking. Eggs set when heated, so adding them late keeps the mixture from thickening or curdling early and lets them bind evenly as the pie bakes.
Swap the potato
How well each one fits the dish's main ingredients (sugar, butter, egg, milk):
- Potatothe original
- Sweet potatofits about as well
- Asparagusfits about as well
- Capsicumfits about as well
Fit is the average pairing score against sugar, butter, egg, milk. 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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