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Dessert

Orange Hearts

A light, almond‑flavored biscuit with orange and lemon notes.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Orange Hearts

Oven, in the book's wordsA slack oven

Ingredients

Directions

The book says “a slack oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Make the batter

  1. Combine egg yolks, powdered sugar, preserved orange peel, ground almonds, rose water, and lemon raspings in a bowl and mix until it forms a light paste.

  2. Whisk egg whites until stiff peaks form.

  3. Gently fold the paste into the egg whites until well combined.

  4. Sift flour into the mixture and fold lightly.

Bake

  1. Preheat oven to 300°F (150°C).

  2. Grease heart-shaped tins and line with five sheets of paper.

  3. Pour mixture into prepared tins.

  4. Ice the biscuits before baking.

  5. Bake until set and lightly golden.

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. Orange + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Almond + flourtop 5% of all pairs
    Smell alikemoderate
    Cooked together8,673 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Orange + almondtop 6% of all pairs
    Smell alikemoderate
    Cooked together3,125 recipes

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

  4. Almond + lemontop 10% of all pairs
    Smell alikestrong
    Cooked together5,655 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Orange + rosetop 10% of all pairs
    Smell alikelow
    Cooked together876 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Egg whites
Whisked to stiff peaks, they give the batter its light, airy structure.
Egg yolks
Add richness and help bind the paste while enriching the texture.
Powdered sugar
Sweetens the biscuits and dissolves easily into the yolk mixture.
Sweet almonds
Ground almonds add body, tender texture and nutty flavour.
Flour
Adds a small amount of starch to help the biscuits hold their shape.
Preserved orange peel
Provides concentrated citrus aroma and a slightly bitter, fragrant flavour.

The step that matters

Fold the paste into the egg whites gently. Egg white foam holds air that gives the biscuits lift. Vigorous stirring knocks out air and makes the batter dense, so fold gently and keep the foam intact.

Swap the orange

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

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

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