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Dessert

Sponge Drops

Sponge Drops are small sponge cakes made with eggs, sugar, flour, and leavening, flavored with lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Sponge Drops

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the batter

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

  2. Beat the egg whites until stiff peaks form.

  3. Add the egg yolks and sugar, mixing well.

  4. Sift in the flour, cream of tartar, and baking soda; mix until combined.

  5. Flavor with lemon extract.

Bake

  1. Drop spoonfuls of the batter onto buttered baking sheets, spacing them 3 inches apart.

  2. Bake immediately until lightly 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. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

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

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

  3. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  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).

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
Whipped whites trap air, giving the drops their light, spongy structure.
Sugar
Sweetens the batter and helps stabilize the whipped egg whites.
Flour
Provides the starch and protein that set the drops and hold their shape.
Cream of tartar
Stabilizes the whipped egg whites so they hold their peaks longer.
Baking soda
Reacts with the acidic cream of tartar to release gas that helps the drops rise.

The step that matters

Bake immediately after dropping the batter. Batter leavened by baking soda and cream of tartar starts releasing gas as soon as it is mixed, and whipped whites slowly lose air. Delaying the bake lets the drops lose lift and spread, so they should go into the oven right away.

Swap the lemon

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

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

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