Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Fruit Layer Cake
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 cake
Preheat the oven to 350°F (175°C).
In a bowl, mix sugar, butter, flour, wine, raisins, and baking soda until well combined.
Divide the batter into three layers and bake each layer until golden.
Make the frosting and assemble
For the frosting, beat the egg whites and gradually add powdered sugar until thick.
Spread frosting between the layers and optionally on top of the cake.
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 + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + winetop 13% of all pairsSmell alikemoderateCooked together8,645 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Butter and flour 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
- Flour
- Forms the structure that holds the cake's crumb together as it bakes.
- Baking soda
- Reacts with the acidic wine to release gas, helping the layers rise.
- Egg whites
- Whipped to form a foam that thickens and stabilises the frosting.
- Butter
- Adds fat for tenderness and richness in the crumb.
- Sugar
- Sweetens the cake and helps it brown as it bakes.
The step that matters
Beating the egg whites for the frosting. Egg whites must be beaten until they form a stable foam before powdered sugar is added gradually. Under-whipped or greasy whites will not thicken, and the frosting will stay runny.
Swap the raisin
How well each one fits the dish's main ingredients (sugar, butter, flour, wine, egg):
- Raisinthe original
- Vanillafits about as well
- Figfits less well
- Lemonfits less well
Fit is the average pairing score against sugar, butter, flour, wine, egg. 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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