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Dessert

Lemon Jelly-cake

A baked cake with a lemon-flavored filling made from eggs, sugar, lemon juice, and water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Lemon Jelly-cake

Oven, in the book's wordsA quick oven

Ingredients

Directions

The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the cake

  1. Preheat the oven to 400°F (200°C).

  2. Beat the eggs and sugar together until well combined.

  3. Add the sifted flour, salt, cold water, and baking powder; mix until smooth.

  4. Pour the batter into jelly-cake pans and bake until golden.

Make the filling and assemble

  1. For the filling, combine 3 eggs, 1 cup sugar, lemon juice, grated rinds, and 1 cup water in a saucepan.

  2. Thicken the mixture with flour over heat until it reaches a rich cream consistency.

  3. Let the filling cool, then spread it between the baked cakes.

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. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

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

Egg and flour barely smell alike, yet cooks put them together in 106,462 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
Build structure and richness in the batter and give the filling body as it sets.
Flour
Forms the cake's structure and, when heated, thickens the lemon filling.
Sugar
Sweetens the cake and filling and helps keep the cake tender.
Baking powder
Releases gas in the batter so the cakes rise and turn light.
Lemons
Add acidity and aroma to the filling, with the rind contributing fragrant oils.

The step that matters

Thicken the filling with flour over heat. Flour thickens only when heated with liquid, and the starch must cook fully to lose its raw taste and reach a smooth, cream-like body. Stirring while heating prevents lumps and scorching on the bottom of the saucepan.

Swap the lemon

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

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

Fit is the average pairing score against egg, sugar, 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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