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Dessert

Walnut Sheet

A baked walnut batter sheet made with walnuts, sugar, eggs, flour, baking powder, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Walnut and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 5,873 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Walnut Sheet

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

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

Make the batter

  1. In a bowl, mix the brown sugar and beaten egg yolks.

  2. Fold in the beaten egg whites.

  3. Sift together the flour, baking powder, and salt, then add to the mixture.

  4. Finally, fold in the chopped walnuts.

Bake and serve

  1. Pour the batter into a baking sheet and bake until set.

  2. Let it cool in the tin before cutting into squares.

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. Walnut + flourtop 12% of all pairs
    Smell alikemoderate
    Cooked together5,873 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Walnut + meattop 13% of all pairs
    Smell alikemoderate
    Cooked together1,035 recipes

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

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

    Shared aroma: 2-nonenal (fatty, 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

Walnut meats
Provide the main body and nutty flavor of the sheet.
Brown sugar
Adds sweetness and moisture, along with a caramel-like depth.
Eggs
Bind the batter and set during baking to give the sheet its structure.
Flour
Gives a small amount of structure so the batter holds together when set.
Baking powder
Releases gas in the batter to lift it slightly as it bakes.

The step that matters

Folding in the egg whites. Egg whites hold air that gives lift; overmixing or deflating them makes the sheet dense. Fold gently so the batter stays light before baking.

Swap the walnut

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

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

Fit is the average pairing score against meat, sugar, egg, 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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