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Grape Catsup

A sweet and spicy grape condiment made by cooking grapes with vinegar, sugar, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Cinnamon and allspice match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 5,536 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Grape Catsup

Ingredients

Directions

  1. Cook grapes in vinegar until soft.

  2. Strain the mixture.

  3. Add sugar and spices.

  4. Cook until thick.

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. Cinnamon + allspicetop 1% of all pairs
    Smell alikestrong
    Cooked together5,536 recipes

    Shared aroma: estragole (anise, licorice).

  2. Cinnamon + grapetop 9% of all pairs
    Smell alikemoderate
    Cooked together3,164 recipes

    Shared aroma: anethole (sweet, anise).

  3. Cinnamon + sugartop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Allspice + grapetop 12% of all pairs
    Smell alikemoderate
    Cooked together753 recipes

    Shared aroma: 2-methylbutyl acetate (fruit).

  5. Allspice + vinegartop 13% of all pairs
    Smell alikemoderate
    Cooked together4,548 recipes

    Shared aroma: 2-methylbutyl acetate (fruit).

Cinnamon and sugar 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 fruit base, sweetness, and natural pectin that helps the ketchup thicken.
Vinegar
Adds acidity that sharpens the flavor and helps preserve the ketchup.
Sugar
Adds sweetness and, as it cooks down, helps build body and gloss.
Cinnamon
Contributes warm, aromatic spice flavor.
Allspice
Contributes warm, aromatic spice flavor with clove-like notes.
Cayenne
Adds gentle heat that balances the sweetness.

The step that matters

Cook until thick. Ketchup thickens as water evaporates and sugars concentrate. Stopping too early leaves it thin and watery, while cooking too long can scorch the sugars and make it sticky or bitter.

Swap the grape

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

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

Fit is the average pairing score against cinnamon, allspice, vinegar, 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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