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Dessert

Lemon Butter

A thickened lemon butter sauce made with eggs, butter, sugar, and lemon zest and juice, served with tarts or bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 Butter

Ingredients

Directions

Make the sauce

  1. Beat the eggs in a bowl.

  2. Add the butter, sugar, lemon rind, and lemon juice; mix well.

  3. Place the mixture in a pan of hot water to cook.

  4. Stir occasionally until thickened.

Serve

  1. Serve with tarts or 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. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

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

  2. Egg + buttertop 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

Eggs
Thicken the sauce as they cook and provide structure and richness.
Butter
Adds fat for a smooth, rich texture and mouthfeel.
Sugar
Adds sweetness that balances the tartness of the lemon.
Lemons
Provide acidity and aroma from the juice and rind.

The step that matters

Cook gently in hot water until thickened. Eggs set when heated slowly. Too much heat can curdle the mixture, so the pan should stay in hot water and the sauce should be stirred often while it thickens.

Swap the lemon

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

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

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