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 ↓
Cream Puffs
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the choux
In a saucepan, combine butter and boiling water; bring to a boil.
Stir in 1 ½ cups of flour while boiling until well combined.
Let the mixture cool, then add 5 beaten eggs and mix well.
Drop spoonfuls of the mixture onto baking sheets.
Bake for 30 minutes in a 400 °F (200 °C) oven.
Make the filling
For the filling, boil 1 pint of milk.
In a bowl, beat together 2 eggs, ⅔ cup flour, and 1 cup sugar.
Stir the egg mixture into the boiling milk until thickened.
Let the filling cool partially, then flavor with lemon.
Assemble and serve
Fill the baked puffs with the lemon‑flavored filling.
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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Flour + buttertop 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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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and butter 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
- All-purpose flour
- Forms the structure of the puffs and thickens the filling.
- Butter
- Adds fat and richness to the choux dough and helps it puff.
- Eggs
- Provide structure in the choux and thicken the custard filling.
- Milk
- Forms the liquid base of the filling and adds richness.
- Sugar
- Adds sweetness to the filling.
The step that matters
Bake until the puffs are fully set. Steam from the water and butter inflates the dough, and the egg structure must set before the puffs are removed. Underbaked puffs collapse as they cool because their walls have not dried enough to hold shape.
Swap the lemon
How well each one fits the dish's main ingredients (flour, butter, egg, milk, sugar):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against flour, butter, egg, milk, sugar. 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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