Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Harlequin 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.
Preheat your oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the egg yolks and milk, mixing well.
In a separate bowl, combine the pastry flour, cream of tartar, and baking soda.
Gradually add the dry ingredients to the wet mixture, mixing until smooth.
Divide the batter into four parts.
Color two parts as desired.
Color the third part with the melted chocolate and the fourth with pink food coloring.
In a double boiler, beat the egg for the lemon filling, then add the water, grated lemon rind, and lemon juice.
Mix this with the sugar and flour, cooking until smooth like cream.
Layer the colored batters and lemon filling in a cake pan.
Beat the egg whites until stiff peaks form and fold into the batter before baking.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Cream + chocolatetop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, egg, milk, flour, cream, chocolate):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against butter, sugar, egg, milk, flour, cream, chocolate. Candidates are from the same food group and used in at least 100 recipes.
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