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Dessert

Lemon Syrup

A lemon‑flavored custard made with corn‑flour, milk, sugar, and optional lemon syrup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Lemon Syrup

Ingredients

Directions

Make the custard

  1. Mix corn‑flour with a little cold milk in a basin until smooth.

  2. Heat the remaining milk with sugar in a saucepan without boiling.

  3. Stir in the corn‑flour mixture and cook until thickened.

  4. Add almond or vanilla flavoring and mix well.

Set and serve

  1. Pour into a damp mold and chill until set.

  2. Serve on a glass dish garnished with jam or fresh fruit compote.

  3. For lemon flavor, pour lemon syrup colored with cochineal around the mold.

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. Flour + almondtop 5% of all pairs
    Smell alikemoderate
    Cooked together8,673 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + syruptop 6% of all pairs
    Smell alikestrong
    Cooked together5,842 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Corn + almondtop 8% of all pairs
    Smell alikestrong
    Cooked together485 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  4. Almond + lemontop 10% of all pairs
    Smell alikestrong
    Cooked together5,655 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Corn + milktop 10% of all pairs
    Smell alikemoderate
    Cooked together6,955 recipes

    Shared aroma: hexanal (green, grassy).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Corn-flour
Thickens the milk into a smooth custard as it cooks.
Sugar
Sweetens the custard and balances its mild flavor.
Cold milk
Forms the liquid base of the custard that sets when chilled.

The step that matters

Stir in the corn‑flour mixture and cook until thickened. Corn-flour thickens only when the mixture is cooked long enough with stirring, and starch can clump or stay raw if it is undercooked or left to settle. Keep stirring so the custard thickens evenly.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (sugar, corn, flour, milk, almond, syrup):

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

Fit is the average pairing score against sugar, corn, flour, milk, almond, syrup. 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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