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Fruit Jellies

Fruit jellies made by boiling fruit, straining, and adding sugar to create a sweet preserve.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 2 ingredients
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Why it works: Blackberry and strawberry match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 222 recipes. Both carry furaneol, which smells caramel, sweet. The science ↓

Fruit Jellies

Ingredients

Directions

Prepare the juice

  1. Place the fruit in a stone jar and set it in a kettle of tepid water over heat.

  2. Boil covered until the fruit breaks down.

  3. Strain the fruit through a coarse bag, pressing hard.

Make the jelly

  1. For each pint of juice, measure out 1 pound of sugar.

  2. Heat the sugar in shallow dishes in the oven, stirring occasionally.

  3. Boil the juice for 20 minutes once it starts to boil.

  4. Add the hot sugar to the boiling juice, stirring rapidly until dissolved.

  5. Once dissolved, bring the jelly to a boil and remove from heat.

  6. Roll glasses or cups in hot water and fill with the hot jelly.

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. Blackberry + strawberrytop 1% of all pairs
    Smell alikestrong
    Cooked together222 recipes

    Shared aroma: furaneol (caramel, sweet).

  2. Strawberry + sugartop 20% of all pairs
    Smell alikelow
    Cooked together3,060 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Blackberry + sugartop 21% of all pairs
    Smell alikelow
    Cooked together1,033 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Fruit
Provides the juice, flavor and natural pectin that help the jelly set.
Sugar
Sweetens the jelly and, at high concentration, helps it set firm and keep.

The step that matters

Add the hot sugar to the boiling juice, stirring rapidly until dissolved. Sugar added to boiling juice must dissolve quickly, or it can crystallize and leave a grainy jelly. Hot sugar dissolves faster and keeps the mixture boiling, so the jelly sets properly.

Swap the blackberry

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

  1. Vanillafits better
  2. Pineapplefits about as well
  3. Bananafits about as well
  4. Blackberrythe original

Fit is the average pairing score against strawberry, 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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