Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Christmas 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.
Prepare the batter
Preheat the oven to 350°F (175°C).
Beat the butter and sugar together until creamy.
Mix the flour with baking powder and ginger, then add to the butter mixture.
Stir in the currants, candied lemon peel, chopped almonds, and citron.
Beat the yolks of the eggs and add them to the mixture.
Beat the egg whites until stiff and gently fold them into the batter.
Bake
Pour the batter into a prepared cake pan and bake for three and a half 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 + almondtop 5% of all pairsSmell alikemoderateCooked together8,673 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lemon + gingertop 5% of all pairsSmell alikestrongCooked together5,154 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Lemon + almondtop 10% of all pairsSmell alikestrongCooked together5,655 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Almond + buttertop 11% of all pairsSmell alikemoderateCooked together9,245 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
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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
- Yolks enrich and bind the batter, while whipped whites add lift and a light crumb.
- Butter
- Creamed with sugar, it traps air and gives the cake a tender, rich texture.
- Flour
- Its proteins set during baking to form the cake's structure.
- Castor sugar
- Creamed with butter, it helps aerate the batter and adds sweetness and browning.
- Currants
- Dried fruit that adds chewy texture and sweetness throughout the cake.
- Baking powder
- Releases gas during baking, helping the cake rise.
The step that matters
Folding in the beaten egg whites. Whites beaten until stiff hold air that gives lift. Overmixing or stirring vigorously deflates them, which leaves a dense cake. Fold gently, just until no white streaks remain.
Swap the currant
How well each one fits the dish's main ingredients (flour, lemon, almond, butter, sugar, ginger, egg):
- Raisinfits better
- Vanillafits better
- Orangefits better
- Currantthe original
Fit is the average pairing score against flour, lemon, almond, butter, sugar, ginger, 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.
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