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Dessert

Lemon Jelly Cake

A sponge cake layered with lemon jelly.

From an old cookbook · modernised transcription
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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 ↓

Lemon Jelly 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 cake

  1. Preheat the oven to 350°F (175°C).

  2. Cream together the sugar and butter.

  3. Add the eggs and mix well.

  4. Stir in the cold water.

  5. Gradually add the flour and baking powder, mixing until smooth.

  6. Divide the batter into three greased cake tins and bake until golden.

Make the lemon jelly

  1. For the jelly, combine ¾ cup sugar, 1 egg, lemon juice, and grated rind in a bowl.

  2. Cook the mixture over steam until thickened.

  3. If using, add the grated sour apple and adjust sugar to 1 cup.

Assemble

  1. Layer the baked cakes with the lemon jelly.

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. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Lemon + appletop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  3. Butter + appletop 14% of all pairs
    Smell alikemoderate
    Cooked together8,706 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

What each ingredient does

Eggs
Bind the batter and help give the cake its structure as they set in the oven.
Butter
Adds fat and richness, contributing to a tender crumb and flavour.
Flour
Forms the main structure of the cake as its proteins set during baking.
Baking powder
Releases gas during baking so the cake rises and becomes light.
Sugar
Sweetens the cake and helps it brown while tenderising the crumb.
Lemon
Provides the acidity and aroma that flavour the jelly filling.

The step that matters

Cook the lemon jelly over steam until thickened. Egg-based fillings set as the proteins coagulate with gentle heat. Overheating or cooking too fast can curdle the eggs, so the jelly stays smooth only with slow, steady steam heat.

Swap the apple

The recipe marks apple as optional. How well each one fits the dish's main ingredients (sugar, butter, egg, flour, lemon):

  1. Raisinfits better
  2. Vanillafits better
  3. Figfits better
  4. Applethe original

Fit is the average pairing score against sugar, butter, egg, flour, lemon. 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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