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Dessert

Lemon Syrup

A simple syrup made with sugar, lemon juice, water, lemon rind, and butter.

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 ↓

Lemon Syrup

Ingredients

Directions

  1. Boil water, sugar, and lemon rind until it slightly thickens.

  2. Add butter and lemon juice; beat with a whisk to blend the butter.

  3. Strain and serve immediately with waffles or fritters.

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. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

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

Sugar
Provides sweetness and, as it dissolves and boils, thickens the syrup body.
Butter
Adds richness and a smooth, glossy mouthfeel to the finished syrup.
Lemon juice
Adds acidity and bright citrus flavor that balances the sugar.
Water
Dissolves the sugar so it can boil into a syrup.

The step that matters

Adding the butter and lemon juice. Butter is fat and will not blend fully into hot syrup without vigorous whisking. Beating it in while the syrup is hot helps it emulsify and stay smooth rather than separating into greasy droplets.

Swap the lemon

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

  1. Vanillafits better
  2. Figfits better
  3. Peachfits better
  4. Lemonthe original

Fit is the average pairing score against 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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