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Dessert

Patience Biscuits

A biscuit made from whipped egg whites, powdered sugar, flour, and citrus zest, baked on waxed copper plates.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Patience Biscuits

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 400°F (200°C).

  2. Warm copper plates at the mouth of the oven or on a stove, then wipe them with paper and rub lightly with virgin wax.

  3. In a copper bowl, break the egg whites and whip them slightly.

Make and rest the paste

  1. Add the powdered sugar and flour, mixing well with a spatula. Incorporate the lemon or orange zest into the mixture.

  2. Using a funnel, drop the paste onto the waxed plates in small rounds, about the size of a shilling.

  3. Let the plates sit in a warm place for 5 to 6 hours until the surface hardens and forms a crust.

Bake

  1. Bake the biscuits in the preheated oven until they are a good color.

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

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 to trap air, giving the biscuits their light, airy structure.
Powdered sugar
Sweetens the biscuits and helps the paste set into a smooth, stable batter.
All-purpose flour
Provides the starch and protein that set the batter and give the biscuits body.
Lemon or orange zest
Adds aromatic citrus oils for fragrance and flavor.

The step that matters

Resting the drops until a crust forms. The paste must sit in a warm place until its surface dries and forms a skin. This crust helps the biscuits keep their shape and rise evenly rather than spreading in the oven.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Lemonthe original
  4. Figfits about as well

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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