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Grape Catsup

A sweet and spicy grape-based condiment made by boiling grape pulp, straining, and cooking with sugar, vinegar, cloves, and cinnamon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Clove and cinnamon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,189 recipes. Both carry ethyl cinnamate, which smells sweet, balsamic. The science ↓

Grape Catsup

Ingredients

Directions

Prepare the grapes

  1. Squeeze the pulp from the grapes.

  2. Heat the pulp in a pot without adding water until it boils.

  3. Strain the mixture through a sieve to remove the skins and pulp.

Make the ketchup

  1. In a pot, combine the strained juice, sugar, vinegar, ground cloves, and ground cinnamon.

  2. Cook the mixture over medium heat, stirring constantly, until it thickens.

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. Clove + cinnamontop 1% of all pairs
    Smell alikestrong
    Cooked together14,189 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  2. Grape + cinnamontop 9% of all pairs
    Smell alikemoderate
    Cooked together3,164 recipes

    Shared aroma: anethole (sweet, anise).

  3. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Grape + clovetop 10% of all pairs
    Smell alikemoderate
    Cooked together1,675 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  5. Grape + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together1,589 recipes

    Shared aroma: isoamyl acetate (banana, fruity).

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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

Grapes
Provide the main fruit flavour, natural sweetness and the juice that forms the base of the ketchup.
Sugar
Adds sweetness and, as it dissolves and concentrates, helps the ketchup thicken.
Vinegar
Adds acidity that brightens the flavour and balances the sweetness.
Ground cloves
Contribute warm, aromatic spice flavour.
Ground cinnamon
Contributes warm, sweet aromatic flavour.

The step that matters

Cook over medium heat while stirring constantly. Grape juice is high in sugar and can scorch on the bottom of the pot before it thickens. Constant stirring spreads heat evenly and prevents burning while water evaporates and the mixture reduces to a thick sauce.

Swap the grape

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

  1. Vanillafits better
  2. Quincefits better
  3. Figfits better
  4. Grapethe original

Fit is the average pairing score against sugar, vinegar, clove, cinnamon. 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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