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, cream together the sugar and butter.
Add the eggs and cold water, mixing well.
Sift together the flour and baking powder, then fold into the mixture.
Divide the batter into layers and bake until golden.
Make the frosting
For the frosting, beat the egg white until stiff.
In a saucepan, combine the egg white, ⅔ cup sugar, and water.
Place the saucepan in boiling water and cook for 10-15 minutes, stirring gently.
Remove from heat and stir in the chopped raisins.
Assemble
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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Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Bind the batter and add structure and richness as the cake sets in the oven.
- Flour
- Forms the cake's structure once it sets during baking.
- Butter
- Adds fat and tenderness to the crumb and carries flavour.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Sugar
- Sweetens the cake and helps it brown and stay tender.
- Egg white
- Beaten until stiff, it forms the airy, marshmallow-like base of the frosting.
The step that matters
Cook the frosting over boiling water while stirring gently. Heating the beaten egg white and sugar gently cooks the egg white proteins so the frosting sets glossy and stable. Stirring gently keeps the foam from collapsing and prevents the mixture from becoming grainy or overcooked.
“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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