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Dessert

Jelly Roll

A baked cake rolled with jam.

From an old cookbook · modernised transcription
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Why it works: Flour and butter 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

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.

Prepare

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

  2. In a bowl, beat the eggs.

Make the batter

  1. Add sugar, water, and sifted dry ingredients (flour, baking powder, and salt) to the eggs.

  2. Mix in the melted butter.

  3. Spread the batter in a greased, paper-lined shallow pan.

Bake and roll

  1. Bake for about 15 minutes.

  2. Spread jam over the baked cake and roll it up in a cloth to hold its shape.

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. Flour + buttertop 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. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

Flour and butter 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
Whisked eggs trap air and give the sponge its light, structured crumb.
Flour
Provides the structure that holds the cake together while it bakes and rolls.
Sugar
Sweetens the cake and helps keep the sponge tender and moist.
Baking powder
Releases gas during baking so the cake rises and stays airy.
Melted butter
Adds fat for softness and a richer flavour in the crumb.

The step that matters

Rolling the baked cake. The cake must be rolled while still warm and flexible; once it cools it becomes brittle and is likely to crack when rolled.

“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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