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Dessert

Jelly Roll

A rolled cake made with butter, sugar, eggs, flour, ammonia, and lemon flavor, topped with 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 ↓

Jelly Roll

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the batter

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

  2. In a bowl, cream together the butter and sugar until light and fluffy.

  3. Beat in the eggs one at a time.

  4. Add the ammonia and lemon flavor, mixing well.

  5. Gradually mix in the flour until fully combined.

  6. Spread the batter onto a parchment-lined baking pan.

Bake and roll

  1. Bake in the preheated oven until golden.

  2. Once baked, spread jelly on the cake, roll it up in the parchment, and let it cool.

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  5. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 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
Add structure and richness, and help the batter rise and set when baked.
Butter
Creams with the sugar to trap air and adds tenderness and flavor.
Sugar
Sweetens the cake and helps create a light, airy texture when creamed with butter.
Flour
Forms the cake's structure once mixed in and set by heat.
Ammonia
Acts as a leavening agent, helping the cake rise and lighten in the oven.

The step that matters

Roll the cake while still warm. Baked sponge cake is flexible when warm but cracks if it cools fully before rolling. Rolling it in the parchment while warm lets it bend without breaking and keeps the spiral shape as it cools.

Swap the lemon

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

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

Fit is the average pairing score against sugar, butter, egg, 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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