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Dessert

Plum Cake

A moist cake made with sugar, butter, milk, baking soda, brandy, lemon extract, flour, raisins, currants, and citron.

From an old cookbook · modernised transcription
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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

Oven, in the book's wordsA brisk oven

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

  1. Preheat the oven to 400°F (200°C).

Make the batter

  1. In a large bowl, cream together the sugar and butter.

  2. Add the milk, baking soda, brandy, and lemon extract; mix well.

  3. Gradually add enough flour to form a stiff batter.

  4. Fold in the raisins, currants, and citron.

Bake

  1. Pour the batter into a greased baking pan and bake until golden.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Flour + raisintop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Brandy + curranttop 7% of all pairs
    Smell alikelow
    Cooked together3,057 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  3. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  4. Raisin + curranttop 10% of all pairs
    Smell alikelow
    Cooked together6,180 recipes

    Shared aroma: gamma-nonanolactone (coconut, creamy).

  5. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked 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):

  1. Vanillafits better
  2. Figfits better
  3. Applefits better
  4. 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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