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Dessert

Fruit Cake

A dense cake made with raisins, currants, citron, nuts, flour, sugar, eggs, butter, whiskey, molasses, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 15 ingredients
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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 slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Make the batter

  1. Cream the butter in a large bowl.

  2. Break in one egg, add a large spoonful of sugar, and beat well.

  3. Continue adding the remaining eggs and sugar, beating until fully combined.

  4. Dredge the fruits and nuts with half of the flour, then add the remaining flour to the batter.

  5. Dissolve the spices in the whiskey and add to the batter.

  6. Stir in the molasses, then fold in the fruit mixture.

Bake

  1. Bake in a slow oven at 300°F (150°C) for 1 hour for each pound, reducing by 30 minutes for the whole cake.

  2. For best results, bake in two molds, placing a griddle or asbestos mat under the pan and covering with another deep pan for the first 30 minutes.

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. Raisin + nutstop 10% of all pairs
    Smell alikemoderate
    Cooked together490 recipes

    Shared aroma: decanal (soap, orange peel).

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

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

  4. Sugar + molassestop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

Eggs
Bind the batter and add structure and richness as they set in the oven.
Butter
Creamed with sugar to trap air, giving the cake a tender, rich crumb.
Flour
Provides the starch and structure that hold the fruit and batter together as it bakes.
Brown sugar
Adds sweetness and moisture, and helps the cake brown as it bakes.
Raisins
Add chewy texture and sweetness, and moisture from the dried fruit.
Molasses
Adds depth, dark color, and moisture with a rich, slightly bitter sweetness.

The step that matters

Bake in a slow oven for the full time. A low, slow bake lets a dense, fruit-heavy batter cook through evenly without the outside burning before the center sets. Shortening the time can leave the middle underbaked.

Swap the currant

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

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

Fit is the average pairing score against raisin, nuts, flour, sugar, egg, butter, molasses. 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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