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Dessert

Walnut Tart

A baked tart made with egg yolks, powdered sugar, walnuts, flour, baking powder, and folded egg whites.

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 Tart

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. The book gives no cooking times either; 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).

Make the batter

  1. In a bowl, mix the egg yolks, powdered sugar, chopped walnuts, flour, and baking powder until well combined.

  2. Gently fold in the beaten egg whites.

Bake and serve

  1. Pour the mixture into a tart pan and bake for about 25-30 minutes or until set.

  2. Let cool before serving.

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  5. Egg + walnuttop 23% of all pairs
    Smell alikemoderate
    Cooked together6,037 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

Egg whites
Whipped air that makes the tart light and gives it a delicate rise as it bakes.
Egg yolks
Add richness and fat, and help bind the batter as it sets.
English walnuts
Add nutty flavour and a tender, slightly oily body to the tart.
Flour
Provides structure so the batter sets into a sliceable tart.
Baking powder
Releases gas in the oven to lift the batter and add lightness.

The step that matters

Gently fold in the beaten egg whites. Egg whites hold air bubbles that give the tart its lift. Stirring vigorously or mixing them in too hard knocks out this air, so the tart bakes up dense and flat instead of light.

Swap the walnut

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

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

Fit is the average pairing score against egg, sugar, 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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