Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Custard Pie
Ingredients
Directions
The book says “a hot oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Make and bake the pie
In a bowl, mix the egg yolks, butter, sugar, cream, and flour until smooth.
Pour the mixture into a pie crust.
Bake until set and lightly browned on top.
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 + 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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Egg yolks
- Set the custard as they heat, giving it a rich, firm body.
- Butter
- Adds fat for a smooth, rich mouthfeel.
- Sugar
- Sweetens the custard and contributes to browning on top.
- Rich cream
- Provides moisture and richness, keeping the custard tender.
- Flour
- Thickens the custard and helps it hold its shape when baked.
The step that matters
Baking until just set. Egg proteins coagulate as the custard heats. Removing it once the centre is just set, before it fully firms, keeps the texture smooth; overbaking causes the proteins to squeeze out liquid and turn grainy or watery.
“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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