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Dessert

Nut Filling

A walnut-based filling for cakes made with sugar, corn starch, butter, water, egg, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Nut Filling

Ingredients

Directions

Make the filling

  1. In a saucepan, combine sugar, corn starch, and butter.

  2. Add boiling water to thicken the mixture.

  3. Cook for a few minutes, then stir in chopped walnuts.

  4. Beat the egg with a little water and mix it in.

Finish and use

  1. Flavor with vanilla extract and let it cool.

  2. Spread the filling on any layer cake.

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

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

  2. Corn + vanillatop 9% of all pairs
    Smell alikemoderate
    Cooked together1,943 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  3. Corn + walnuttop 9% of all pairs
    Smell alikestrong
    Cooked together349 recipes

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

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

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Corn + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together7,345 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

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

Sugar
Adds sweetness and body to the filling.
Corn starch
Thickens the filling as it heats with the liquid.
Butter
Adds fat for richness and a smoother texture.
Chopped walnuts
Add texture and a toasty, nutty bite.
Egg
Enriches the filling and helps give it body.

The step that matters

Cooking the thickened mixture. Corn starch only thickens fully when heated, so the mixture must cook long enough to lose its raw starchy taste and reach a smooth, set consistency before the walnuts and egg go in.

Swap the walnut

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

  1. Almondfits better
  2. Chestnutfits about as well
  3. Pecansfits about as well
  4. Walnutthe original

Fit is the average pairing score against sugar, corn, butter, egg, 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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