Why it works: Walnut and almond match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 993 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Plum Cake
Ingredients
Directions
The book says “a steady oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare and mix
Preheat the oven to 350°F (175°C).
In a large bowl, cream the butter and sugar together until light and fluffy.
Beat in the eggs one at a time, adding a little flour with each egg.
Fold in the cleaned fruit and the remaining flour until well combined. Ensure the mixture has a firm consistency.
Bake
Pour the batter into a prepared cake pan and bake for 4 to 5 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.
-
Walnut + almondtop 2% of all pairsSmell alikestrongCooked together993 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Flour + almondtop 5% of all pairsSmell alikemoderateCooked together8,673 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Walnut + gingertop 10% of all pairsSmell alikemoderateCooked together737 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Butter + almondtop 11% of all pairsSmell alikemoderateCooked together9,245 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Eggs
- Bind the batter and add structure and richness as they set in the oven.
- All-purpose flour
- Provides the main structure that sets as the cake bakes.
- Butter
- Adds fat and tenderness, and traps air when creamed with sugar.
- Sugar
- Sweetens the cake and helps create a light, aerated texture when creamed.
- Currants
- Add chewy texture and concentrated fruit sweetness throughout the cake.
The step that matters
Ensure the mixture has a firm consistency. A batter that is too wet can sink or bake unevenly and become gummy, while a firm batter holds the heavy fruit evenly suspended. Adjust with flour or milk before baking.
Swap the currant
How well each one fits the dish's main ingredients (flour, butter, sugar, walnut, ginger, almond, egg):
- Raisinfits better
- Coconutfits better
- Figfits better
- Currantthe original
Fit is the average pairing score against flour, butter, sugar, walnut, ginger, almond, egg. 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.
More fruit cake recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Ginger Cookies213 recipes
Ginger Cake93 recipes
Soft Ginger Bread85 recipes
Red Currant Jelly65 recipes