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Dessert

Strawberry Jelly

A fruit jelly made from mashed strawberries, sugar, water, lemon juice, and isinglass.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and lemon 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 ↓

Strawberry Jelly

Ingredients

Directions

Prepare the juice

  1. Place strawberries in an earthen pan and mash them with a wooden spoon.

  2. Mix in the pounded sugar and let it infuse for 1 hour.

  3. Add water and lemon juice if strawberries are very ripe.

  4. Strain the mixture through a nearly new bag to obtain clear juice.

Set the jelly

  1. Mix the melted isinglass with the cold juice.

  2. Test the thickness by placing a small amount in a mould over ice.

  3. If thick enough, pour the mixture into a large mould and cover with ice, avoiding salt.

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. 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

Strawberries
Provide the main flavour, colour and fruit body of the jelly.
Pounded sugar
Adds sweetness and helps draw juice from the mashed fruit during infusion.
Lemon juice
Adds acidity that brightens the strawberry flavour and supports setting.
Isinglass
Gelatinous protein that sets the strained juice into a firm, sliceable jelly.

The step that matters

Testing the thickness over ice. Isinglass sets only as the mixture cools, so a small test sample shows whether it will firm up before the whole batch is poured into the mould. Judging this by sight alone risks a runny or overly stiff jelly.

“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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