Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Apple Cheese Pie
Ingredients
Directions
Make the filling
Stew the apples and press them through a colander.
In a bowl, mix the pressed apples with the egg yolks, lemon juice, and softened butter.
Sweeten the mixture to taste.
Pour the mixture into a pie dish without a top crust.
Top and brown
Beat the egg whites until stiff.
Sweeten the beaten egg whites.
Spread the sweetened egg whites on top of the pie after baking.
Return the pie to the oven.
Brown the top lightly.
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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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Apples
- Provide the bulk of the filling and its fruity, tart flavor once stewed and pressed smooth.
- Egg yolks
- Bind the apple mixture and enrich it, helping it set into a custard-like filling.
- Butter
- Adds richness and a smooth, tender texture to the filling.
- Lemon juice
- Adds acidity that brightens the apple flavor and balances the sweetness.
- Egg whites
- Whipped until stiff, they form a light meringue topping that browns in the oven.
The step that matters
Beat the egg whites until stiff. Egg whites must be whipped until they hold firm peaks, because air trapped in the foam gives the meringue its lift and light texture. Underbeaten whites will slump and weep on the pie.
Swap the apple
How well each one fits the dish's main ingredients (egg, lemon, butter, sugar):
- Vanillafits better
- Orangefits better
- Raspberryfits better
- Applethe original
Fit is the average pairing score against egg, lemon, butter, 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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