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Dessert

Aunt Mary's Fruit Cake

A moist fruit cake made with butter, sugar, flour, eggs, molasses, raisins, citron, currants, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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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 ↓

Aunt Mary's Fruit Cake

Ingredients

Directions

The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.

Make the batter

  1. Preheat the oven to 300°F (150°C).

  2. In a large bowl, cream together the butter and sugar until light and fluffy.

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

  4. Stir in the molasses and baking soda.

  5. Gradually add the flour, mixing until just combined.

  6. Fold in the raisins, citron, currants, cinnamon, cloves, and nutmeg.

Bake

  1. Pour the batter into a greased cake pan.

  2. Bake for 1.5 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. Raisin + cinnamontop 1% of all pairs
    Smell alikemoderate
    Cooked together5,390 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  3. Flour + cinnamontop 9% of all pairs
    Smell alikemoderate
    Cooked together17,341 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

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

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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 the sugar to trap air and give a tender, rich crumb.
Eggs
Add structure and richness, binding the batter as it sets in the oven.
Flour
Forms the structure that holds the cake together as it bakes.
Molasses
Adds moisture, deep flavor and color to the cake.
Baking soda
Reacts with the molasses to help the cake rise and lighten.
Raisins
Add chewy moisture and concentrated sweetness throughout the cake.

The step that matters

Gradually add the flour, mixing until just combined. Overmixing once flour is added develops gluten, which makes the cake tough and dense rather than tender.

Swap the currant

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

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

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