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 ↓
Walnut Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the batter
Preheat the oven to 350°F (175°C).
In a large bowl, cream the butter and brown sugar together.
Add the beaten eggs and mix well.
Stir in the milk and molasses.
In another bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Fold in the chopped walnuts and raisins.
Bake and finish
Pour the batter into a greased dripping pan.
Bake for 30‑35 minutes or until a toothpick inserted in the center comes out clean.
Let cool and frost as desired.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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
- Creamed with sugar to trap air and add richness and tenderness to the crumb.
- Eggs
- Bind the batter and add structure and richness as the cake sets.
- Flour
- Forms the cake's structure once its proteins set in the oven.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Brown sugar
- Adds sweetness, moisture, and a caramel-like depth of flavor.
The step that matters
Mixing the dry ingredients into the wet mixture. Overmixing once flour is added develops gluten, which can make the cake tough and dense. Mix only until just combined so the crumb stays tender.
Swap the walnut
How well each one fits the dish's main ingredients (butter, sugar, egg, milk, molasses, flour, raisin):
- Almondfits better
- Chestnutfits better
- Pistachiofits about as well
- Walnutthe original
Fit is the average pairing score against butter, sugar, egg, milk, molasses, flour, 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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