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Dessert

Sponge Later and Jelly Roll

A sponge cake roll filled with jelly, made with egg yolks, sugar, baking soda, lemon oil, cream of tartar, and cake flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓

Sponge Later and Jelly Roll

Oven, in the book's wordsA hot oven

Ingredients

Directions

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

Make the batter

  1. In a large mixer, beat the egg yolks and sugar until light and fluffy.

  2. Add the dissolved baking soda and milk mixture, followed by the lemon oil.

  3. Sift the cream of tartar with the cake flour and gradually mix it into the batter.

Bake

  1. Pour the batter into prepared pans and bake in a hot oven at 400°F (200°C) until golden.

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 + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  2. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

Milk and flour barely smell alike, yet cooks put them together in 78,219 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

Egg yolks
Add richness and structure, helping the batter set as it bakes.
Sugar
Sweetens the batter and helps the eggs trap air when beaten to a light, fluffy texture.
Baking soda
Reacts with the acidity in the batter to release gas, helping it rise.
Cake flour
Provides the structure that holds the cake together as it bakes.
Cream of tartar
Adds acidity that supports the baking soda reaction and stabilises the batter.

The step that matters

Beat the egg yolks and sugar until light and fluffy. Beating incorporates air into the yolks and sugar, which gives the batter lift before it bakes. Under-beating leaves a dense sponge, so this step sets the final texture.

Swap the lemon

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

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

Fit is the average pairing score against egg, sugar, milk, cream, 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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