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Dessert

English Walnut Sponge Cake

A light sponge cake flavored with lemon and studded with walnuts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Lemon and walnut match in chemistry and in kitchens. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,149 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

English Walnut Sponge 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. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

  1. Preheat the oven to 350°F (175°C).

  2. Separate the egg whites and yolks.

  3. Beat the yolks until creamy and the whites until stiff.

Make the batter

  1. Blend the powdered sugar, salt, lemon juice, lemon extract, pastry flour, and diced walnuts together.

  2. Combine the dry mixture with the beaten yolks.

  3. Gently fold in the beaten egg whites.

Bake, ice and serve

  1. Pour the batter into a cake tin and bake for 25-30 minutes.

  2. Ice with boiled icing and decorate with walnut halves.

  3. Serve the cake the same day it is baked.

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. Lemon + walnuttop 10% of all pairs
    Smell alikestrong
    Cooked together2,149 recipes

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

  2. Flour + walnuttop 12% of all pairs
    Smell alikemoderate
    Cooked together5,873 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. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Lemon + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Egg and flour barely smell alike, yet cooks put them together in 106,462 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
Whipped whites trap air that gives the sponge its light, rising structure.
Pastry flour
Provides the gentle starch structure that holds the sponge once baked.
Powdered sugar
Sweetens the cake and dissolves easily into the batter for a fine crumb.
English walnuts
Add crunch and a nutty flavour throughout the sponge.

The step that matters

Folding in the beaten egg whites. Whites hold air only when stiff, so folding gently keeps the bubbles intact; stirring hard deflates the batter and the cake bakes flat and dense.

Swap the walnut

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

  1. Almondfits better
  2. Milletfits better
  3. Pistachiofits better
  4. Walnutthe original

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