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 ↓
Black 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
Beat the butter and brown sugar together until creamy.
Stir in ¼ of the flour.
Whip the eggs until very stiff and gradually add them to the mixture.
Add the remaining flour in two parts, mixing well after each addition.
Incorporate the Madeira wine, brandy, and spices into the batter.
Gradually fold in the chopped fruit.
Bake
Pour the batter into a prepared cake pan and bake for 4 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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Flour + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Currant + brandytop 7% of all pairsSmell alikelowCooked together3,057 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
Raisin + curranttop 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).
-
Raisin + brandytop 13% of all pairsSmell alikemoderateCooked together2,768 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Whipped eggs add air and structure, helping the heavy batter rise and set.
- Butter
- Creamed with sugar, it traps air and adds richness and a tender crumb.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Brown sugar
- Adds sweetness, moisture and a deep caramel flavor.
- Raisins
- Add chewy texture and concentrated sweetness to the fruit cake.
- Molasses
- Adds moisture, dark color and a deep, slightly bitter sweetness.
The step that matters
Folding in the fruit gradually. Adding heavy fruit too quickly or without care can weigh the batter down and cause uneven texture. Folding gently keeps the air from the whipped eggs intact so the cake stays light enough to rise and bake evenly.
Swap the currant
How well each one fits the dish's main ingredients (butter, sugar, flour, raisin, egg, madeira wine, brandy):
- Vanillafits better
- Figfits about as well
- Currantthe original
- Applefits about as well
Fit is the average pairing score against butter, sugar, flour, raisin, egg, madeira wine, brandy. 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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