Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Baked 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.
Prepare
Preheat the oven to 400°F (200°C).
Select good baking apples and place them split side up in a granite pan with ½ cup of hot water.
Bake until half done.
Finish and serve
Blend together the light brown sugar and flour, then dust over the tops of the apples.
Place bits of butter between the apples.
When done, place a marshmallow in the center of each apple and let them brown.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Baking apples
- Hold their shape while baking and soften into a tender, sweet filling.
- Light brown sugar
- Adds sweetness and caramelizes on the surface, deepening color and flavor.
- Flour
- Mixed with the sugar to form a coating that thickens the syrup and helps the top brown.
- Butter
- Adds richness and fat that melts into the apples, carrying flavor and promoting browning.
- Marshmallows
- Melt and brown on top, adding sweetness and a toasted surface.
The step that matters
Baking until half done before adding toppings. Apples baked too long before the toppings go on can turn mushy and collapse. Starting with a partial bake lets the flesh soften evenly, so the sugar and butter can then caramelize on the surface without overcooking the fruit.
Swap the apple
How well each one fits the dish's main ingredients (sugar, flour, butter):
- Raisinfits better
- Vanillafits better
- Figfits better
- Applethe original
Fit is the average pairing score against sugar, flour, butter. 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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