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 ↓
Plum Cake
Ingredients
Directions
The book says “a brisk oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Make the batter
In a large bowl, cream together the sugar and butter.
Add the milk, baking soda, brandy, and lemon extract; mix well.
Gradually add enough flour to form a stiff batter.
Fold in the raisins, currants, and citron.
Bake
Pour the batter into a greased baking pan and bake until golden.
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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Brandy + curranttop 7% of all pairsSmell alikelowCooked together3,057 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Raisin + curranttop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Sugar
- Sweetens the cake and helps create a tender crumb when creamed with butter.
- Butter
- Adds fat for richness and tenderness, and traps air when creamed with sugar.
- Milk or buttermilk
- Adds moisture and liquid that hydrates the flour to form the batter.
- Baking soda
- Reacts with acidic ingredients to produce gas that helps the cake rise and brown.
- Flour
- Provides the structure that sets the batter into a cake as it bakes.
- Raisins
- Add chewy texture and concentrated sweetness throughout the cake.
The step that matters
Gradually add enough flour to form a stiff batter. Adding flour gradually helps it blend evenly without overworking the gluten. Too much mixing or flour can make the cake dense and tough, while the batter should be stiff enough to hold the fruit.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, milk, brandy, flour, raisin, currant):
- Vanillafits better
- Figfits better
- Applefits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, milk, brandy, flour, raisin, currant. 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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