Why it works: Butter and apple are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 8,706 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Crystallized Apples
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Peel and core the apples, then slice them into three pieces (circles).
Boil sugar and water to make a syrup for 20 minutes.
Add the apple slices to the syrup, placing them flat in the pan in a single layer.
Put a small piece of butter in the center of each apple ring.
Bake in a 400°F (200°C) oven and serve cold.
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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Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + appletop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and apple barely smell alike, yet cooks put them together in 16,478 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
Swap the apple
How well each one fits the dish's main ingredients (sugar, butter):
- Vanillafits better
- Figfits about as well
- Peachfits about as well
- Applethe original
Fit is the average pairing score against sugar, butter. Candidates are from the same food group and used in at least 100 recipes.
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