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Dessert

Puff Paste

A dough made from pastry flour, butter, salt, sugar, and ice water, folded and rolled to create flaky layers.

From an old cookbook · modernised transcription
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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

Prepare

  1. Fill a large bowl with boiling water, then replace it with cold water, leaving it half full.

  2. Wash the butter in this water and work it with your hands until light and wavy.

  3. Shape the butter into two thin cakes and place them in a pan of ice water to harden.

Make the dough

  1. Mix the flour, sugar, and salt together, then rub a third of the butter into the flour.

  2. Add the ice water and stir quickly with a knife until the mixture forms a smooth ball.

  3. Lightly sprinkle flour on a molding board, turn the paste onto it, and pound it lightly with a rolling pin.

  4. Roll the paste to about ¼ inch thick, then spread the remaining butter in bits on top.

Fold and chill

  1. Sprinkle lightly with flour, fold the paste from each side so the edges meet, then fold from the ends without having them meet.

  2. Double the paste, pound lightly, and roll to about ⅓ inch thick.

  3. Repeat the folding and rolling process three times for pies, or six times for vol-au-vents, patties, or tarts.

  4. After the final roll, place the paste on ice and let it chill for at least one hour before using.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

Pastry flour
Forms the gluten structure that holds the paste together and lets the layers stay defined.
Butter
Forms separate layers that turn to steam in the oven, creating the flaky rise.
Ice water
Keeps the butter cold and hydrates the flour without fully developing gluten.

The step that matters

Keeping the butter cold while folding. If the butter softens and blends into the dough, the separate layers are lost and the pastry bakes dense instead of flaky. Chilling between rolls keeps the butter firm.

“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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