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Dessert

Prussian Biscuits

A sweet biscuit made with sugar, flour, clarified butter, filbert kernels, Kirschenwasser, bitter almond essence, and whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Prussian Biscuits

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.

Make the batter

  1. In a bowl, mix the yolks, sugar, flour, Kirschenwasser, and essence for 20 minutes.

  2. Add clarified butter and whipped egg whites; mix thoroughly.

Fill and bake

  1. Butter small half‑inch deep fancy molds and sprinkle the shredded kernels on the bottoms.

  2. Fill the molds nearly to the top with batter and sprinkle sugar on the surfaces.

  3. Bake in a moderate oven at 350°F (175°C) until done.

Finish

  1. Once cooled, turn out of the molds and glaze the almond side with transparent icing flavored with Kirschenwasser.

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. Flour + almondtop 5% of all pairs
    Smell alikemoderate
    Cooked together8,673 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + almondtop 11% of all pairs
    Smell alikemoderate
    Cooked together9,245 recipes

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

  3. Butter + filberttop 11% of all pairs
    Smell alikemoderate
    Cooked together52 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  4. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Filbert + almondtop 13% of all pairs
    Smell alikemoderate
    Cooked together80 recipes

    Shared aroma: acetylpyrazine (roast).

Flour and butter barely smell alike, yet cooks put them together in 124,287 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 yolks and whipped egg whites (in the method)
Provide structure and lift, giving the biscuits a light, tender crumb as they set.
Flour
Forms the structure that holds the biscuit's shape as it bakes.
Clarified butter
Adds richness and a tender texture by coating flour particles and shortening the crumb.
Sugar
Sweetens the biscuits and helps the surface brown during baking.
Shredded filbert kernels
Add nutty flavor and crunch to the bottom of each biscuit.

Swap the filbert

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

  1. Pistachiofits better
  2. Cashew nutfits better
  3. Macadamia nutfits better
  4. Filbertthe original

Fit is the average pairing score against sugar, flour, butter, almond. 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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