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 ↓
Chocolate Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the filling
Cream together the butter, sugar, egg yolks, flour, and chocolate until smooth.
Add the sweet milk and cook over medium heat until it reaches a jelly-like consistency.
Assemble
Prepare puff pastry and line two pie pans with it.
Pour the chocolate mixture into the prepared pie crusts.
Top and bake
Whip the egg whites until soft peaks form, then gradually add the sugar to make meringue.
Spread the meringue over the chocolate filling.
Bake in a preheated oven at 350°F (175°C) until the meringue is golden 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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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Chocolate + milktop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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 smooth, tender body to the filling.
- Sugar
- Sweetens the filling and helps stabilise the meringue.
- Egg yolks
- Thicken the filling as they cook, helping it set.
- Flour
- Its starch thickens the filling as it cooks.
- Baker's chocolate
- Provides the chocolate flavour and deep colour of the filling.
- Sweet milk
- Forms the liquid base that thickens into the filling when cooked.
The step that matters
Cook the filling until jelly-like. Heat sets the egg yolks and activates the flour's starch, which thicken the filling. If it is not cooked long enough to thicken fully, the filling stays runny and may not hold a clean slice once baked and cooled.
“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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