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 ↓
Chess Pie
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the custard
Prepare the pie crust but do not bake it.
In a bowl, mix the butter, sugar, eggs, flour, and milk until smooth.
Pour the custard mixture into the prepared crust.
Bake and brown
Bake in a slow oven at 300°F (150°C) until set.
Beat the whites of 2 eggs until stiff, then gradually add a little sugar.
Spread the egg whites over the pie and return to the oven to brown.
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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Butter
- Adds richness and a tender, rich texture to the custard filling.
- Sugar
- Sweetens the custard and helps give the top a golden browning.
- Eggs
- Set the custard as it bakes, giving it structure and body.
- Flour
- Thickens the custard and keeps it smooth rather than grainy.
- Milk
- Provides the liquid base that bakes into the custard filling.
The step that matters
Baking until set. Baking at a slow, steady heat lets the egg proteins coagulate gently. Too hot and the custard can puff, crack, or curdle, while underbaking leaves it runny.
“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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