Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. 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.
Make the batter
Preheat the 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 flour, baking powder, cream of tartar, and baking soda.
Gradually add the dry ingredients to the wet mixture, mixing until smooth.
Flavor and bake
Divide the batter into four equal parts.
Leave two parts plain, flavor one with orange extract, and the other with vanilla extract.
Color the third part with melted chocolate and the fourth with pink food coloring, adding strawberry extract.
Bake each colored batter in separate pans until done.
Assemble and frost
Layer the cakes: light, chocolate, light, pink, spreading lemon jelly between layers.
To make lemon jelly, beat one egg and mix with water, lemon rind, and juice.
Slowly pour this mixture over sugar and flour, cooking until smooth.
Frost the assembled cake with white frosting.
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 + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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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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Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Provides the starch and gluten network that gives the cake its structure.
- Butter
- Creamed with sugar to trap air and add richness and tenderness.
- Eggs
- Yolks add richness and emulsify the batter; proteins help set the crumb as it bakes.
- Baking powder
- Releases gas as it heats, lifting the batter so the cake rises.
- Baking soda
- Reacts with the cream of tartar to release gas, adding lift.
- Sugar
- Sweetens the cake and helps brown it while tenderising the crumb.
The step that matters
Slowly pour the egg mixture over the sugar and flour while cooking. Adding liquid slowly and stirring keeps the flour and sugar from clumping. Flour starch must be heated in liquid to thicken, and the egg proteins can scramble if the heat is too high, so the mixture needs steady attention until smooth.
“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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