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Dessert

Apple Foam

Apple Foam is a dessert made from steamed apples, beaten egg whites, sugar, lemon juice, and custard.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Apple Foam

Why it works: Apple and milk are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 4,104 recipes. Both carry 4-heptenal, which smells creamy, biscuit. The science ↓

Apple Foam

Ingredients

Directions

The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the apples

  1. Pare and core the apples, then steam them until soft.

  2. Let the apples cool, then add the beaten egg whites, sugar, and lemon juice.

  3. Beat the mixture briskly for 30 minutes.

Make the custard

  1. In a separate bowl, make a custard by combining the egg yolks, sugar, and hot milk.

Assemble and finish

  1. Place the foam in a dish and cover it with the custard.

  2. Optionally, run it in the oven at 300°F (150°C) to achieve a pale brown color.

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.

Photo for illustrative purposes only · Contact us to use it

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. Apple + milktop 11% of all pairs
    Smell alikemoderate
    Cooked together4,104 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

  2. Apple + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  3. Lemon + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

  4. Apple + sugartop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

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

  5. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

Apple and sugar 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

Tart apples
Provide the main fruit flavor and, once cooked and beaten, the body of the foam.
Egg whites
Trap air when beaten, creating the light, foamy structure of the dish.
Sugar
Sweetens the foam and helps stabilize the beaten egg white structure.
Milk
Forms the smooth, custard base that covers the foam.

The step that matters

Beat the mixture briskly for 30 minutes. Beating incorporates air into the egg whites and apple mixture to form the foam. Beating too little leaves it dense, while the foam can collapse if it is left standing before it is covered and served.

Swap the apple

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

  1. Vanillafits better
  2. Orangefits better
  3. Figfits better
  4. Applethe original

Fit is the average pairing score against egg, sugar, lemon, milk. 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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