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Dessert

Pastry Sandwiches

Two layers of puff pastry sandwiched around jam, marked into divisions and baked until crisp.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Peach and sugar are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 2,308 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Pastry Sandwiches

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Assemble

  1. Divide the puff pastry in half and roll each half into a thin square.

  2. Place one half on a buttered baking sheet and spread it lightly with jam.

  3. Cover with the second half, pressing the edges together with a rolling pin.

Bake

  1. Mark the pastry into divisions and bake in a preheated oven at 350°F (175°C) for 15 to 20 minutes.

  2. For fanchonnettes, roll out another square of pastry, spread jam, and cover with a second square, moistening edges with water or beaten egg.

  3. Press edges together, brush with water, and dust with sugar.

  4. Mark into divisions and bake for 20 minutes, cutting while still hot.

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. Peach + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,308 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Peach + eggtop 29% of all pairs
    Smell alikemoderate
    Cooked together1,048 recipes

    Shared aroma: 2-nonenal (fatty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Puff pastry
Forms flaky, layered structure that puffs and browns in the oven.
Jam
Adds sweetness and fruit flavour, and moisture that softens the pastry layers slightly.
Egg or water
Moistens edges so the pastry layers seal together, and beaten egg helps browning.

The step that matters

Pressing the edges together. Sealing the edges keeps the jam from leaking during baking. A tight seal also lets the pastry rise upward and form layers rather than spreading out.

Swap the peach

How well each one fits the dish's main ingredients (egg, sugar):

  1. Vanillafits better
  2. Raisinfits better
  3. Lemonfits better
  4. Peachthe original

Fit is the average pairing score against egg, 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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