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Dessert

Apple Filling

A sweet filling made from beaten egg white, sugar, and grated sour apple.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Sugar and apple are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 16,478 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Apple Filling

Ingredients

Directions

  1. Beat the egg white until stiff.

  2. Gradually add the sugar while continuing to beat.

  3. Grate the sour apple into the mixture.

  4. Beat with an egg beater until the consistency is like whipped cream.

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 + appletop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  3. Egg + appletop 30% of all pairs
    Smell alikelow
    Cooked together7,461 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Sugar and apple barely smell alike, yet cooks put them together in 16,478 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 white
Whipped into a stiff foam that gives the filling its light, airy structure.
Sugar
Sweetens the filling and helps stabilize the whipped egg white foam.
Sour apple
Adds tartness and moisture, balancing the sweetness of the sugar.

The step that matters

Beat the egg white until stiff. Egg white foams trap air only when beaten to stiffness before the sugar is added. Underbeaten whites collapse, and the filling loses its airy, whipped-cream texture.

Swap the apple

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

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

Fit is the average pairing score against egg, sugar. 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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