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Dessert

Harlequin Cake

A layered cake with colored layers and lemon icing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and corn are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,927 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Harlequin Cake

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare and bake

  1. Prepare the No. 1 layer cake mixture and divide it into three portions, coloring each with a different color.

  2. Bake each layer in separate tins at 400°F (200°C) for 20 minutes.

Make the lemon filling

  1. Mix the corn starch and water, then cook for 5 minutes.

  2. Add sugar, lemon juice, and egg to the mixture, cooking for 1 minute longer.

Assemble and ice

  1. Once cooled, spread the lemon mixture on two layers and stack them.

  2. Ice the stacked cake with hot icing.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Lemon + corntop 13% of all pairs
    Smell alikemoderate
    Cooked together1,927 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  4. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Sugar + corntop 21% of all pairs
    Smell alikelow
    Cooked together7,168 recipes

    Shared aroma: 2-nonenal (fatty, green).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
Egg thickens the lemon mixture and adds richness to the filling.
Corn starch
Starch thickens the water and lemon mixture into a spreadable filling when cooked.
Sugar
Sweetens the lemon filling and balances its tartness.
Lemon
Juice and rind add acidity and bright aroma to the filling.

The step that matters

Cooking the lemon filling. Starch only thickens fully once it is heated and boiled, and the egg can curdle if overheated. Stirring steadily and watching the heat keeps the filling smooth and thick.

Swap the lemon

How well each one fits the dish's main ingredients (sugar, egg, corn):

  1. Vanillafits better
  2. Coconutfits about as well
  3. Raisinfits about as well
  4. Lemonthe original

Fit is the average pairing score against sugar, egg, corn. 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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