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 ↓
Pennsylvania 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.
Prepare
Preheat the oven to 300°F (150°C).
Make the batter
In a large bowl, cream together the butter and sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the currants, raisins, citron, flour, nutmeg, and mace.
Mix in the orange and lemon juice and rind, cherries, figs, brandy, and coffee.
Bake
Pour the batter into a greased cake pan and bake for several hours until a toothpick comes out clean.
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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Raisin + flourtop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Nutmeg + macetop 4% of all pairsSmell alikemoderateCooked together6,557 recipes
Shared aroma: myristicin (spice, warm).
-
Raisin + nutmegtop 6% of all pairsSmell alikemoderateCooked together5,377 recipes
Shared aroma: alpha-terpineol (lilac, floral).
-
Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Currant + raisintop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
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 as the cake sets in the oven.
- Butter
- Adds richness and tenderness, and creaming it with sugar traps air for lift.
- Sugar
- Sweetens the cake and helps create a light, creamed texture with the butter.
- Flour
- Provides the structure that holds the dense fruit and batter together.
- Currants
- Add concentrated fruit sweetness and chewy texture throughout the cake.
- Raisins
- Add concentrated fruit sweetness and chewy texture throughout the cake.
The step that matters
Baking at low heat for a long time. Batter this rich and fruit-heavy can brown on the outside before the center sets. A low oven heats the cake gently so it cooks through evenly, and a toothpick test confirms the center is done.
Swap the mace
How well each one fits the dish's main ingredients (egg, sugar, butter, currant, raisin, flour, nutmeg):
- Cinnamonfits better
- Allspicefits better
- Cardamomfits better
- Macethe original
Fit is the average pairing score against egg, sugar, butter, currant, raisin, flour, nutmeg. 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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