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Dessert

Walnut Cake

A layered walnut cake with a milk-based filling and powdered sugar icing.

From an old cookbook · modernised transcription
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Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Walnut Cake

Oven, in the book's wordsA slow oven

Ingredients

Directions

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

Prepare the cake layers

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

  2. Cream the egg yolks and powdered sugar together.

  3. Add the beaten egg whites, cracker crumbs, chopped walnuts, and baking powder to the mixture.

  4. Divide the batter into three layers.

  5. Bake the layers until set.

Make the filling

  1. Heat the milk.

  2. Stir in the egg yolks and cornstarch until thickened.

  3. Add sugar and vanilla to the filling. Mix the filling well.

Assemble and finish

  1. Spread the filling between the layers and on top of the cake.

  2. Mix powdered sugar with a little water to create icing. Spread the icing on top of the cake.

  3. Decorate with walnut halves.

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. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

  2. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

  3. Walnut + vanillatop 10% of all pairs
    Smell alikestrong
    Cooked together2,730 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  4. Walnut + milktop 16% of all pairs
    Smell alikemoderate
    Cooked together3,236 recipes

    Shared aroma: 1-hexanal (fruit).

  5. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Walnuts
Provide the main body and nutty flavour of the cake, replacing much of the flour.
Eggs
Whites are beaten to add lift and structure, while yolks enrich and help set the batter and custard.
Cracker crumbs
Act as a light binder that gives the cake body in place of flour.
Baking powder
Releases gas in the batter to help the layers rise.
Milk
Forms the base of the custard-like filling, adding moisture and richness.
Cornstarch
Thickens the filling so it holds its shape between the layers.

The step that matters

Folding in the beaten egg whites. Beaten whites trap air that gives the layers lift. Overmixing deflates them, so the batter bakes up dense rather than light.

Swap the walnut

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

  1. Almondfits better
  2. Chestnutfits better
  3. Cocoafits better
  4. Walnutthe original

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