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 says “a rather quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Roll out the puff pastry thinly.
Place half of it on a baking sheet.
Spread your choice of jam evenly over the pastry.
Cover with another thin layer of puff pastry.
Press the edges together and mark lines on the surface with a knife.
Bake and serve
Bake at 400°F (200°C) for 20 to 30 minutes.
Before done, brush with egg white and sprinkle with sugar.
Return to the oven to color.
Once cooled, cut into strips and serve in a pyramid shape.
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
- Its layers puff with steam during baking, giving a light, flaky structure.
- Jam
- Adds sweetness and moisture that fills the pastry and softens its interior.
- Egg white
- Brushed on top, it promotes browning and gives the surface a glossy finish.
- Sugar
- Sprinkled on top, it adds sweetness and helps the surface caramelize and color.
The step that matters
Brushing with egg white and sugar before done. Timing matters: applying the egg white and sugar too early can burn the sugar, while too late leaves the top pale and without a glossy, sugared finish.
“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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