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Dessert

Fruit Cake

Fruit Cake is a dense, spiced cake with raisins, currants, citron, and alcohol.

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 ↓

Fruit 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. Cream the butter and sugar together until light and fluffy.

  2. Add the eggs one at a time, mixing well after each addition.

  3. Stir in the flour, followed by the citron, raisins, and currants.

  4. Mix in the syrup, brandy, sherry, and spices until well combined.

Bake

  1. Pour the batter into a prepared cake pan.

  2. Bake for 5 hours or until a toothpick inserted in the center 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. Flour + raisintop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + syruptop 6% of all pairs
    Smell alikestrong
    Cooked together5,842 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Currant + brandytop 7% of all pairs
    Smell alikelow
    Cooked together3,057 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  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

Butter
Creams with sugar to trap air, giving a tender, rich crumb.
Eggs
Bind the batter and add structure as the cake sets in the oven.
Flour
Forms the main structure that holds the fruit and batter together.
Raisins
Add moisture and concentrated sweetness throughout the cake.
Currants
Add moisture and concentrated sweetness throughout the cake.
Brandy
Adds aroma and flavour and helps keep the cake moist.

The step that matters

Baking low and long. A long, gentle bake lets the heavy, fruit-filled batter cook through to the centre without the outside burning. Checking with a toothpick in the centre confirms it is fully set before cooling.

Swap the currant

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

  1. Vanillafits better
  2. Figfits better
  3. Apricotfits about as well
  4. Currantthe original

Fit is the average pairing score against butter, sugar, flour, egg, raisin, syrup, 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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