Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Swiss Apple Charlotte
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Remove the crust from the stale loaf and cut slices of bread and butter from the crumb.
Butter the inside of a pie dish and line it with the bread and butter.
Layer and bake
Add a layer of sliced apples, then sprinkle with lemon peel and sugar.
Continue layering apples, lemon peel, and sugar until the dish is full.
Squeeze the juice of two lemons over the top.
Cover the dish with the bread crusts and apple peels to prevent burning.
Bake for 1 hour at 400°F (200°C).
Serve
Once done, remove the crusts and peels, and carefully turn out onto a serving dish.
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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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Bread + appletop 14% of all pairsSmell alikemoderateCooked together1,790 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Stale loaf of bread
- Forms the golden bread lining that holds the layered apples in shape.
- Butter
- Adds richness and helps the bread brown and crisp as it bakes.
- Apples
- Provide the bulk of the filling, softening and becoming moist as they cook.
- Sugar
- Sweetens the apples and helps them caramelise slightly at the edges.
- Lemon peel
- Adds aromatic oils that brighten the flavour of the apples.
- Lemon juice
- Adds acidity that balances the sweetness and keeps the apples fresh-tasting.
The step that matters
Covering the dish with bread crusts and apple peels. The cover shields the top layer from direct heat so it does not scorch during the long bake, while the apples steam underneath and cook through.
Swap the lemon
How well each one fits the dish's main ingredients (bread, butter, apple, sugar):
- Figfits better
- Pearfits better
- Vanillafits better
- Lemonthe original
Fit is the average pairing score against bread, butter, apple, 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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