Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boston Cream Puffs of the Baker's Shop
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 paste
Bring the water to a boil with the lard and salt.
Add the flour all at once and stir over the heat for about 5 minutes until it forms a stiff paste.
Remove from heat and beat in the eggs one at a time.
Bake and fill
Drop small spoonfuls of the paste onto lightly greased baking sheets, leaving an inch of space between them.
Bake in a moderate oven at 350°F (175°C) for about 20 minutes.
Cut a slit in the side of each puff and fill with pastry 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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Flour
- Starch that gelatinizes with the hot water to form the stiff paste that holds the puffs' shape.
- Eggs
- Add structure as they set, and moisture that turns to steam to lift the puffs.
- Lard or butter
- Adds fat for tenderness and richness in the paste.
The step that matters
Beating in the eggs. The paste must be cooled slightly before the eggs go in, and each egg must be fully incorporated before the next, so the batter stays smooth and thick. If it is too hot or too loose, the eggs can scramble or the puffs will not rise well and may collapse.
“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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