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Dessert

Orange Filling

A sweet orange filling made with sugar, lemon juice, cake flour, water, egg, orange rind, butter, and orange juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Lemon and orange 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 Filling

Oven, in the book's wordsA slow oven

Ingredients

Directions

  1. Mix the ingredients in the order given.

  2. Cook in a double boiler for ten minutes, stirring constantly.

  3. Cool before spreading.

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. Lemon + orangetop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Lemon + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

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

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

Cake flour
Thickens the filling as it cooks, giving it a smooth, spreadable body.
Egg
Sets during cooking, helping thicken and enrich the filling.
Sugar
Sweetens the filling and helps balance the tartness of the citrus.
Butter
Adds richness and a smooth mouthfeel to the finished filling.

The step that matters

Cooking in the double boiler. Stirring constantly over gentle indirect heat keeps the egg and flour from scorching or lumping while the starch thickens and the egg sets smoothly.

Swap the orange

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

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

Fit is the average pairing score against sugar, lemon, flour, egg, 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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