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Dessert

Rock Cake

A cake made from almonds, powdered sugar, and egg whites, baked into cone-shaped pieces.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Almond and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 15,679 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓

Rock Cake

Oven, in the book's wordsA cool oven

Ingredients

Directions

The book says “a cool oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 300°F (150°C).

Make and bake

  1. Beat the egg whites until stiff peaks form.

  2. Stir in the powdered sugar, then fold in the chopped almonds.

  3. Drop spoonfuls of the mixture onto white buttered paper, shaping them into cones.

  4. Bake in the cool oven until they can be removed from the paper without breaking.

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. Almond + sugartop 18% of all pairs
    Smell alikemoderate
    Cooked together15,679 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  2. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  3. Almond + eggtop 25% of all pairs
    Smell alikemoderate
    Cooked together12,645 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Egg whites
Whipped to stiff peaks, they trap air and give the cakes their light, airy structure.
Sweet almonds
Provide the bulk and body of the cake, giving it a dense, chewy texture.
Powdered sugar
Sweetens the mixture and dissolves into the whipped whites, helping set their structure.

The step that matters

Folding in the almonds. Folding gently preserves the air whipped into the egg whites. Stirring or overmixing deflates the foam, so the cakes spread flat and turn out dense instead of holding their cone shape.

Swap the almond

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

  1. Pecansfits about as well
  2. Almondthe original
  3. Chestnutfits about as well
  4. Milletfits less well

Fit is the average pairing score against sugar, egg. 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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