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 ↓
Pineapple Pie
Ingredients
Directions
Combine butter, sugar, cream, milk, and egg yolks in a double boiler.
Heat until hot, then thicken with flour mixed with a little water.
Once thick and starting to cool, add lemon rind, lemon extract, and grated pineapple.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + pineappletop 12% of all pairsSmell alikemoderateCooked together885 recipes
Shared aroma: methyl 2-methylbutyrate (fruity, apple).
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
- Eggs
- Egg yolks enrich the custard and help it set into a creamy, tender filling.
- All-purpose flour
- Flour mixed with water thickens the custard so it holds its body when cooled.
- Butter
- Butter adds richness and a smooth, silky mouthfeel to the filling.
- Sugar
- Sugar sweetens the filling and balances the tartness of the pineapple and lemon.
- Grated pineapple
- Pineapple provides the main fruit flavor and a bright, tangy contrast to the custard.
The step that matters
Thicken the custard gently in the double boiler. Egg yolks and starch thicken as they heat, but too much heat can curdle the yolks and leave lumps. Gentle, indirect heat keeps the filling smooth.
Swap the pineapple
How well each one fits the dish's main ingredients (butter, sugar, cream, milk, egg, flour, lemon):
- Vanillafits better
- Raisinfits better
- Figfits better
- Pineapplethe original
Fit is the average pairing score against butter, sugar, cream, milk, egg, flour, lemon. 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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