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Dessert

Lemon Conserve

A buttery lemon preserve made with sugar, egg yolks, whites, rind, and juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and lemon 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 ↓

Lemon Conserve

Ingredients

Directions

  1. In a saucepan, cream the softened butter.

  2. Add the powdered sugar and mix well.

  3. Stir in the beaten egg yolks and frothy egg whites.

  4. Add the grated lemon rind and lemon juice.

  5. Cook over low heat, stirring constantly, until thickened like good cream, without boiling.

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. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

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

  2. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  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).

Sugar and lemon 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

Fresh butter
Creamed with the sugar to give the preserve a rich, smooth body.
Powdered loaf sugar
Sweetens the preserve and dissolves easily into the creamed butter.
Egg yolks
Thicken the preserve as they set with gentle heat, giving it a custard-like texture.
Egg whites
Beaten to a froth, they add lightness and volume to the mixture.
Lemon rind
Supplies concentrated lemon aroma and flavour from the peel's oils.
Lemon juice
Adds acidity and bright lemon flavour that balances the sweetness.

The step that matters

Cook over low heat without boiling. Egg yolks thicken as they heat but will curdle or turn grainy if they get too hot. Low heat, constant stirring, and stopping at a thick cream-like texture keep the preserve smooth.

Swap the lemon

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

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

Fit is the average pairing score against butter, sugar, egg. 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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