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Drink

Hot Lemonade

A hot drink made from lemon juice, orange juice, sugar and boiling water.

From an old cookbook · modernised transcription
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Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Hot Lemonade

Ingredients

Directions

  1. Rasp the rinds of the lemons with the sugar to extract the aromatic oil.

  2. Dissolve the sugar in the boiling water.

  3. Add the strained juice of the rasped lemons and the juice of the oranges.

  4. Stir well and serve hot.

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 + orangetop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

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

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

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

  3. Sugar + orangetop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

Sugar
Sweetens the drink and, when rasped with the lemon rinds, helps draw out their aromatic oils.
Lemons
Provide the main acidity and aromatic oil from the rinds and juice.
Havana oranges
Add extra juice and sweetness to balance the lemon's acidity.

The step that matters

Rasping the rinds with the sugar. Rubbing the rind against sugar breaks the oil sacs in the peel and releases their aromatic oils into the sugar, which then dissolve into the drink. Pressing too lightly or skipping this step leaves the drink tasting flat and less fragrant.

“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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