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Dessert

Surprise Cake

A hazelnut cake made with sugar, flour, butter, eggs, and pounded hazelnuts, baked at 350°F.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and hazelnut match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 464 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Surprise Cake

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Make the batter

  1. Break the eggs into a bowl and add the sugar.

  2. Whisk over gentle heat until lukewarm.

  3. Remove from heat and continue whisking until light.

  4. Gently stir in the hazelnuts, flour, and melted butter.

Bake and finish

  1. Pour the mixture into special moulds and bake in a moderate oven at 350°F (175°C).

  2. Once cooled, finish the dish like the Mexican Cakes.

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. Flour + hazelnuttop 8% of all pairs
    Smell alikestrong
    Cooked together464 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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
Whisked to trap air, giving the cake its light, airy structure.
Sugar
Sweetens the batter and helps the whisked eggs hold their foam.
Flour
Provides the starch and structure that sets the cake as it bakes.
Butter
Adds fat for richness and a tender crumb.
Hazelnuts
Add nutty flavour and a dense, moist texture to the crumb.

The step that matters

Whisk until light. Whisking the eggs and sugar over gentle heat, then off the heat, builds a stable foam. Overheating can scramble the eggs, and under-whisking leaves the cake flat and dense.

Swap the hazelnut

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

  1. Almondfits better
  2. Macadamia nutfits about as well
  3. Chestnutfits about as well
  4. Hazelnutthe original

Fit is the average pairing score against sugar, flour, butter, 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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