Why it works: Apple and cinnamon are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 5,598 recipes. Both carry methyl cinnamate, which smells strawberry. The science ↓
Apple Custard Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the filling
Preheat the oven to 350°F (175°C).
Mix the apple pulp with sugar and cinnamon.
Add the beaten eggs and milk to the mixture.
Bake
Pour the filling into the pie crust.
Bake until set and golden.
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 + cinnamontop 4% of all pairsSmell alikemoderateCooked together5,598 recipes
Shared aroma: methyl cinnamate (strawberry).
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Cinnamon + milktop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Apple + milktop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
-
Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set the custard as they cook, giving the filling its firm, sliceable structure.
- Milk
- Adds liquid that cooks into a smooth, tender custard around the apple pulp.
- Sugar
- Adds sweetness and balances the tartness of the raw apples.
- Apples
- Provide moisture, body and fruit flavor to the custard filling.
- Cinnamon
- Adds a warm aroma that complements the apples and custard.
The step that matters
Bake until set and golden. Egg proteins coagulate as the custard heats. Underbaked filling stays runny and will not slice cleanly, while overbaking can make the custard curdle, weep or crack. Check that the centre is just set.
Swap the apple
How well each one fits the dish's main ingredients (sugar, cinnamon, egg, milk):
- Vanillafits better
- Raisinfits better
- Figfits better
- Applethe original
Fit is the average pairing score against sugar, cinnamon, egg, milk. 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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