Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Fruit Cake
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.
Prepare
Preheat the oven to 300°F (150°C).
In a pot, combine spices with molasses and simmer for a few minutes, then cool.
Make the batter
In a large bowl, cream together the butter and sugar.
Add eggs, black coffee, sour milk, and the cooled spice mixture to the bowl.
Mix in the raisins, currants, citron, almonds, and walnuts.
Sift the flour several times and gradually add it to the mixture.
Beat the egg whites separately and fold them into the batter.
Bake
Pour the batter into a greased cake pan and bake in the slow oven until done.
Once baked, remove from the oven and cover tightly.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Coffee + milktop 10% of all pairsSmell alikemoderateCooked together2,202 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Raisin + curranttop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
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Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Molasses + raisintop 12% of all pairsSmell alikelowCooked together3,577 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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, when beaten whites are folded in, add lift and a light crumb.
- Butter
- Creamed with sugar, it traps air and adds richness and tender texture.
- Sugar
- Sweetens the cake and helps create a tender crumb when creamed with butter.
- Molasses
- Adds dark color, moisture, and a deep, slightly bitter sweetness.
- Flour
- Provides the structure that holds the fruit and nuts together as the cake sets.
- Baking soda
- Reacts with the sour milk to produce gas that helps the cake rise.
The step that matters
Bake slowly and cover after baking. A low, slow bake lets a dense fruit cake cook through without scorching the outside. Covering it tightly after baking traps moisture so the cake stays soft as it cools.
Swap the currant
How well each one fits the dish's main ingredients (egg, sugar, butter, molasses, coffee, milk, raisin):
- Vanillafits better
- Figfits better
- Applefits better
- Currantthe original
Fit is the average pairing score against egg, sugar, butter, molasses, coffee, milk, raisin. 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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