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
Ingredients
Directions
The book says “a very slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Preheat the oven to 300°F (150°C).
Cream the butter and brown sugar together.
Add the beaten eggs and molasses, mixing well.
Dissolve the baking soda in the molasses mixture and add it.
Mix the flour with the remaining ingredients and combine with the wet mixture.
Mix thoroughly and pour into a prepared baking pan.
Bake
Bake for about six hours.
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.
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Flour + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Raisin + curranttop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Molasses + raisintop 12% of all pairsSmell alikelowCooked together3,577 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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 the sugar to form a fat structure that traps air and gives a tender crumb.
- Eggs
- Bind the batter and add structure and richness as they set in the oven.
- All-purpose flour
- Provides the main structure that holds the fruit and batter together as the cake bakes.
- Baking soda
- Reacts with the acidic molasses to produce gas that helps the cake rise and lighten.
- Molasses
- Adds moisture, dark color, and a deep, slightly acidic flavor.
- Raisins
- Add sweetness, chewy moisture, and bulk to the fruit cake.
The step that matters
Bake for about six hours. A long, low bake at 300°F lets heat reach the dense center slowly, so the cake sets through without the outside burning. Stopping early leaves a gummy middle.
Swap the mace
How well each one fits the dish's main ingredients (butter, sugar, egg, molasses, flour, raisin, currant):
- Cinnamonfits better
- Nutmegfits better
- Allspicefits better
- Macethe original
Fit is the average pairing score against butter, sugar, egg, molasses, flour, raisin, currant. 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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