Why it works: Egg and sugar are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 122,807 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Pastry Sandwiches
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
Roll out the puff pastry thinly.
Place half of the pastry on a baking sheet and spread jam evenly over it.
Cover the jam with another layer of thin pastry and press the edges together.
Score the surface with a knife to mark cutting lines.
Bake and finish
Bake at 400°F (200°C) for 20 minutes to ½ hour.
A few minutes before done, brush the pastry with egg white and sprinkle with sifted sugar.
Return to the oven to color.
Once cooled, cut into 2‑inch strips and arrange in a pyramid on a dish.
Serve with flavored whipped cream poured in the center.
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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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 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 crisps when baked.
- Jam
- Adds sweetness and moisture that fills the sandwich between the pastry layers.
- Egg white
- Gives the surface a glossy sheen and helps browning.
- Sifted sugar
- Forms a sweet, caramelizing crust on the top as it bakes.
The step that matters
Returning the pastry to the oven to color. Pastry browns quickly once the sugar is on the surface, so it can burn if left too long. Watching closely keeps the top golden rather than dark.
“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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