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Drink

Gruel Effervescing

A hot gruel mixed with lemon juice, soda, water, and sweetened with sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Gruel Effervescing

Ingredients

Directions

  1. Mix the juice of half a lemon into 1 cup of thin hot gruel.

  2. Dissolve ½ teaspoon of carbonate of soda in 1 tablespoon of water and add to the mixture.

  3. Serve hot with sugar to taste.

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

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

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

Gruel
Forms the liquid base and gives the drink its body.
Lemon juice
Its acid reacts with the soda to release carbon dioxide, causing the fizz.
Carbonate of soda
Reacts with the lemon acid to release gas, making the drink effervesce.

The step that matters

Adding the soda solution. Carbonate of soda reacts with the lemon's acid to release carbon dioxide bubbles. The fizz fades quickly, so mixing in the soda just before serving keeps the effervescence lively.

“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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