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Drink

Moss Lemonade

A drink made by steeping Irish moss in boiling water, then adding lemon juice and sweetening.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Irish moss and lemon work together. They rank in the top 10% of all ingredient pairs, and cooks put them together in 61 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Moss Lemonade

Ingredients

Directions

Prepare the moss

  1. Wash the Irish moss well in several waters.

  2. Pour 1 quart of boiling water over the moss and let it cool.

  3. Steep for 1 hour.

Finish

  1. Sweeten to taste.

  2. Add the juice of 1 lemon.

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. Irish moss + lemontop 10% of all pairs
    Smell alikemoderate
    Cooked together61 recipes

    Shared aroma: coumarin (sweet, hay).

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

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

  3. Irish moss + sugartop 24% of all pairs
    Smell alikemoderate
    Cooked together107 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

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

Irish moss
Releases natural thickeners that give the lemonade a light, slightly gel-like body.
Lemon juice
Adds acidity that brightens the flavor and balances the sweetness.
Sugar
Adds sweetness that offsets the lemon's sharpness.

The step that matters

Wash the Irish moss well in several waters. Irish moss is a seaweed that can hold sand and grit from the shore. Rinsing it thoroughly removes these before steeping, so the drink stays clean-tasting and free of gritty residue.

Swap the lemon

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

  1. Vanillafits better
  2. Lemonthe original
  3. Peachfits less well
  4. Raisinfits less well

Fit is the average pairing score against irish moss, 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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