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Dessert

Date Filling

A sweet filling made from dates, lemon, water, sugar, and butter, cooked until soft.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and butter are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Date Filling

Ingredients

Directions

  1. Combine dates, lemon rind, lemon juice, water, sugar, and butter in a saucepan.

  2. Cook over medium heat until the mixture is soft.

  3. Spread the filling on bread.

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

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

  2. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  4. Dates + sugartop 19% of all pairs
    Smell alikelow
    Cooked together985 recipes

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

  5. Dates + buttertop 21% of all pairs
    Smell alikelow
    Cooked together513 recipes

    Shared aroma: anethole (sweet, anise).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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

Dates
Form the bulk of the filling and soften into a spreadable paste when cooked.
Sugar
Adds sweetness to balance the tartness of the lemon and the dates.
Butter
Adds fat for a richer, smoother texture in the filling.
Lemon
Adds acidity and bright citrus aroma that cut through the sweetness of the dates.

The step that matters

Cook until the mixture is soft. Cooking softens the dates so their starches and fibres break down into a smooth, spreadable paste. Stopping too early leaves lumps and a firm texture, while cooking too long can dry the filling and make it stiff once cooled.

Swap the dates

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

  1. Vanillafits better
  2. Orangefits better
  3. Figfits better
  4. Datesthe original

Fit is the average pairing score against lemon, sugar, 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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