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Dessert

Plum Cake

A fruit cake made with flour, butter, sugar, candied peel, currants, sultanas, baking soda, eggs, and milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Plum Cake

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 350°F (175°C).

Make the batter

  1. Rub the butter into the flour.

  2. Add the sugar and fruit, then mix well.

  3. Dissolve the baking soda in the milk and moisten the mixture with the eggs.

  4. Combine everything until well mixed.

  5. Pour the batter into a greased baking pan.

Bake

  1. Bake for about 1 hour and 30 minutes, or until a toothpick comes out clean.

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

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

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  5. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked 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

Flour
Forms the structure that holds the cake together as it bakes.
Butter
Adds richness and tenderness by coating the flour and carrying fat into the crumb.
Sugar
Adds sweetness and helps the cake brown and keep moist.
Eggs
Bind the batter and add structure and richness as they set.
Baking soda
Reacts with the milk to produce gas that makes the cake rise.
Milk
Moistens the batter and dissolves the baking soda so it can react evenly.

The step that matters

Dissolving the baking soda in the milk. Baking soda must be fully dissolved and mixed through the batter so its gas forms evenly. Pockets of undissolved soda can leave bitter spots and uneven rising.

Swap the currant

How well each one fits the dish's main ingredients (flour, butter, sugar, egg, milk):

  1. Vanillafits better
  2. Raisinfits better
  3. Figfits better
  4. Currantthe original

Fit is the average pairing score against flour, butter, sugar, egg, milk. 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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