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 ↓
Frosted Raisin 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.
Make the batter
Preheat the oven to 350°F (175°C).
In a bowl, mix sugar, flour, eggs, cold water, baking powder, and butter until smooth.
Divide the batter into layers.
Bake the layers until golden.
Make the frosting
Beat the egg white until stiff.
Combine the egg white, sugar, and water in a saucepan.
Cook the mixture over boiling water for 10-15 minutes without letting it stiffen.
Stir the chopped raisins into the frosting.
Assemble the cake
Spread the frosting between the layers and 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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Walnut + raisintop 13% of all pairsSmell alikemoderateCooked together647 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 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
- Eggs
- Provide structure and richness, helping the batter set as it bakes.
- Flour
- Forms the structure of the cake as its starch sets during baking.
- Sugar
- Sweetens the cake and helps it brown while baking.
- Baking powder
- Releases gas during baking so the layers rise and become light.
- Butter
- Adds fat for tenderness and flavor in the cake crumb.
- Egg white
- Whipped and cooked with sugar to form a stable, glossy frosting.
The step that matters
Cooking the frosting without letting it stiffen. Heating the beaten egg white and sugar over boiling water lets the sugar dissolve and the proteins cook gently into a smooth, spreadable foam. Overheating or over-cooking can make it stiff, grainy, or dry, so it should be watched closely during the 10-15 minutes.
Swap the walnut
How well each one fits the dish's main ingredients (sugar, flour, egg, butter, raisin):
- Almondfits better
- Chestnutfits better
- Pistachiofits better
- Walnutthe original
Fit is the average pairing score against sugar, flour, egg, butter, raisin. 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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