Why it works: Raisin and flour 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 Cake
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 300°F (150°C).
Make the batter
Cream the butter and sugar together until smooth.
Add the egg yolks, grape juice, and beaten egg whites to the mixture.
Sift in the flour and baking powder, and mix well.
Stir in the currants, raisins, and citron.
Bake
Pour the batter into a prepared pan and bake for 2 hours.
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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Raisin + flourtop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Currant + raisintop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
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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).
-
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
- Eggs
- Yolks enrich and bind the batter, while beaten whites add lift and a light crumb.
- Butter
- Creamed with sugar, it traps air and gives the cake a tender, rich texture.
- Flour
- Its proteins set during baking, forming the structure that holds the fruit.
- Baking powder
- Releases gas in the batter, helping the cake rise and turn light.
- Sugar
- Sweetens the cake and, creamed with butter, helps create a fine, even crumb.
- Raisins
- Add moisture and chewy sweetness as the cake bakes.
The step that matters
Stir in the currants, raisins, and citron. Heavy fruit can sink to the bottom of the pan. Tossing the fruit in a little flour before folding it in helps it stay suspended in the batter as it bakes.
Swap the grape
How well each one fits the dish's main ingredients (sugar, currant, raisin, butter, egg, flour):
- Vanillafits better
- Figfits better
- Applefits better
- Grapethe original
Fit is the average pairing score against sugar, currant, raisin, butter, egg, flour. 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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