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
Make the choux
Pour boiling water over butter and stir until dissolved.
Stir in flour until smooth and set aside to cool.
Once cool, add eggs and stir well.
Mix in baking powder and drop spoonfuls onto buttered paper.
Bake until golden.
Make the filling
For the cream, combine milk, flour, and sugar in a saucepan.
Cook until thickened, then flavor with lemon juice.
Assemble
Once puffs are cool, carefully break open 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.
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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
- Eggs
- Provide structure and richness, setting the puffs as they bake and letting them rise with steam.
- All-purpose flour
- Forms the starch structure of the choux pastry and thickens the cream filling.
- Butter
- Adds fat and richness, and melts into the boiling water to start the dough.
- Milk
- Forms the liquid base of the cream filling, adding richness and body.
- Sugar
- Sweetens the cream filling.
- Baking powder
- Releases gas in the oven to help the puffs rise and lighten.
The step that matters
Bake until golden. The puffs need enough oven heat to set their walls before they fall. Underbaked puffs collapse or stay wet inside, while the golden colour signals that the starch and egg structure has dried and firmed.
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.
More cream puffs recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Lemon Cake228 recipes
Lemon Ice147 recipes
Lemon Sherbet103 recipes
Lemon Custard64 recipes