Why it works: Cinnamon and vanilla match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 5,287 recipes. Both carry 4-methoxybenzaldehyde, which smells sweet, anise. The science ↓
Plain Apple Custard
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
Preheat the oven to 350°F (175°C).
Make and bake
In a bowl, combine the apple sauce, beaten eggs, and milk.
Pour the mixture into crust-lined plates.
Sprinkle with ground cinnamon or add vanilla flavoring.
Cut strips of crust and lay them crosswise on top.
Bake in the preheated oven until set.
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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Cinnamon + vanillatop 1% of all pairsSmell alikestrongCooked together5,287 recipes
Shared aroma: 4-methoxybenzaldehyde (sweet, anise).
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Apple + cinnamontop 4% of all pairsSmell alikemoderateCooked together5,598 recipes
Shared aroma: methyl cinnamate (strawberry).
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Apple + vanillatop 8% of all pairsSmell alikemoderateCooked together1,501 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Milk + cinnamontop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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 it structure and a firm, sliceable texture.
- Apple sauce
- Provides the apple flavor and moisture that make up the body of the custard.
- Milk
- Adds moisture and richness, helping the custard stay soft and smooth as it sets.
- Pie crust
- Forms the base and top shell that holds the custard while it bakes.
The step that matters
Bake until set. Egg proteins coagulate as they heat, so the custard turns firm when fully set. Removing it too early leaves a runny center, while overbaking can make it curdled or rubbery.
Swap the vanilla
The recipe marks vanilla as optional. How well each one fits the dish's main ingredients (apple, sauce, egg, milk, cinnamon):
- Vanillathe original
- Pearfits about as well
- Figfits less well
- Plumfits less well
Fit is the average pairing score against apple, sauce, egg, milk, cinnamon. 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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