Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Currant 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.
Make the batter
Cream the butter in a bowl.
Gradually add the sugar and beat until creamy.
In a separate bowl, beat the egg yolks until lemon colored.
In another bowl, beat the egg whites until stiff and dry.
Combine the egg yolks with the creamed mixture.
Fold in the beaten egg whites gently.
Add the grated lemon rind and lemon juice.
Sift together the flour and baking soda, then fold into the mixture.
Dredge the currants in 1 tablespoon of flour and fold them into the batter.
Bake
Pour the batter into a deep cake pan.
Bake at 300°F (150°C) for 1½ 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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Butter + curranttop 17% of all pairsSmell alikemoderateCooked together7,856 recipes
Shared aroma: isoamyl acetate (banana, pear).
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
- Eggs
- Whites trapped by beating give the cake lift and an airy, light crumb.
- Butter
- Creamed with sugar, it adds richness and a tender texture to the crumb.
- Sugar
- Beaten with butter it sweetens the cake and helps create a creamy, aerated base.
- All-purpose flour
- Its proteins set during baking, giving the cake its structure.
- Baking soda
- Reacts with the acidity of the lemon to help the cake rise.
- Currants
- Scattered through the batter, they add chewy pockets of fruit sweetness.
The step that matters
Fold in the beaten egg whites gently. Egg whites hold the air that makes the cake rise. Vigorous stirring deflates them, leaving a dense, flat cake.
Swap the currant
How well each one fits the dish's main ingredients (butter, sugar, egg, lemon, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Currantthe original
Fit is the average pairing score against butter, sugar, egg, lemon, flour. 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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