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Fruit Cake

From an old cookbook · modernised transcription
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Why it works: Raisin and flour 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 cool oven

Ingredients

Directions

  1. Soak raisins in boiling water to facilitate seeding, then clip or cut them without chopping too fine.

  2. Slice the citron thinly, ensuring pieces are small to prevent breaking the cake.

  3. Prepare currants by washing in warm water until clear, then drain, dry, and pick out bad ones.

  4. Cream the butter and sugar together, then add spices, molasses, and milk if using.

  5. Beat the eggs well and add them to the mixture, followed by the flour mixed with baking powder or soda and cream of tartar.

  6. Add lemon and vanilla extracts, then fold in the fruit dredged with a little flour.

  7. For better texture, beat the eggs separately before adding them to the batter.

  8. Test the dough by baking a small sample cake.

  9. Once baked, wrap the cake in a cloth dampened with whiskey or brandy to keep it moist.

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. Raisin + flourtop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

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

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

  4. Molasses + sugartop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  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

Swap the currant

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

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

Fit is the average pairing score against molasses, raisin, butter, sugar, milk, egg, flour. Candidates are from the same food group and used in at least 100 recipes.

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