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 moderate oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.
Make the choux dough
Melt the butter in hot water.
While boiling, beat in the flour.
Remove from heat and let cool.
Once cool, stir in the eggs one at a time without beating.
Drop spoonfuls onto baking sheets.
Bake and fill
Bake for about 25 minutes in a moderate oven (350°F / 175°C).
For the cream, boil the milk with one egg, sugar, and flour until thick.
Flavor with lemon.
When baked, open the side of each puff and fill with cream.
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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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).
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
- Melts into the hot water to add fat and richness to the dough.
- All-purpose flour
- Starch that sets with heat to give the dough body and hold the puffs' shape.
- Eggs
- Add structure and moisture, and help the baked puffs rise and stay hollow.
- Milk
- Forms the base of the cream, which thickens as it boils with the flour and egg.
- Sugar
- Adds sweetness to the cream filling.
The step that matters
Stir in the eggs one at a time without beating. Eggs must be fully absorbed into the cooled dough to form a smooth, stretchy batter. Adding them too fast or beating hard can make the dough loose or break its structure, so the puffs may not rise well or hold their hollow centre.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, egg, milk, sugar):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against butter, flour, 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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