Why it works: Flour and butter 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 ↓
Puff Paste
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the dough
Dissolve sal-volatile in cold water.
In a bowl, rub one third of the butter into two thirds of the flour.
Add the dissolved sal-volatile and salt, then moisten with water to form a nice paste.
Cut the remaining butter into slices and incorporate it into the dough.
Roll out the dough to about ⅓ inch thickness.
Shape and bake
Use the dough for puffs or as a crust for pies.
Bake in a hot oven at 400°F (200°C) until light brown; if baking too quickly, cover with paper.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, 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 paste and gives the dough its structure once baked.
- Unsalted butter
- Forms separate fat layers that steam apart in the oven, creating flakiness.
- Sal-volatile
- Acts as a leavening agent, helping the dough rise and lighten during baking.
The step that matters
Incorporating the sliced butter into the dough. The layers of butter must stay distinct in the dough. As the butter melts in the oven, its water turns to steam that lifts the layers apart, so the pastry puffs and flakes. If the butter is mixed in too fully, the layers are lost and the rise is weaker.
“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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