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Dessert

Apple Filling

A stiff egg white base mixed with powdered sugar and finely 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. Whip the egg white to a very stiff froth.

  2. Gradually add the powdered sugar to the whipped egg white.

  3. Grate the apple finely and stir it in gradually.

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 to a stiff foam, it traps air and gives the filling a light, airy structure.
Powdered sugar
Dissolves easily into the foam, adding sweetness and helping stabilise the whipped structure.
Sour apple
Adds acidity and moisture, balancing the sweetness of the sugar and egg white.

The step that matters

Whipping the egg white to a very stiff froth. Egg white proteins unfold and trap air when beaten. If under-whipped, the foam will be loose and the filling will deflate. Over-whipping can make it grainy and dry, so stop once the peaks hold firm.

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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