Skip to main content
Main

Tomato Catsup

A sweet and tangy tomato-based condiment made with tomatoes, peppers, sugar, vinegar, salt, cloves, cinnamon, and optional cayenne pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
Jump to recipe ↓

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 ↓

Tomato Catsup

Ingredients

Directions

  1. Boil tomatoes and peppers until soft enough to pass through a sieve.

  2. Add sugar, vinegar, salt, cloves, cinnamon, and cayenne pepper to the mixture.

  3. Cook all ingredients together slowly for 15 minutes.

  4. Bottle the catsup.

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. Pepper + clovetop 5% of all pairs
    Smell alikestrong
    Cooked together17,451 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  3. Tomato + peppertop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Pepper + cinnamontop 9% of all pairs
    Smell alikestrong
    Cooked together4,890 recipes

    Shared aroma: methyl cinnamate (strawberry).

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

    Shared aroma: guaiacol (smoky, sweet).

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

Tomatoes
Form the bulk of the ketchup, providing body, moisture and the base flavour.
Sugar
Adds sweetness and balances the acidity of the tomatoes and vinegar.
Vinegar
Adds acidity that brightens the flavour and helps preserve the ketchup.
Coarse sea salt
Seasons the ketchup and draws out flavour from the tomatoes.

The step that matters

Cook all ingredients together slowly for 15 minutes. Slow cooking lets the tomato pulp thicken gradually as water evaporates. Cooking too fast or too long can scorch the sugar and dull the flavour.

Swap the tomato

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

  1. Capsicumfits better
  2. Mustardfits better
  3. Sweet potatofits better
  4. Tomatothe original

Fit is the average pairing score against pepper, 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.

More tomato ketchup recipes

Green 26 See all 523 →

You might also like

Tomato SoupTomato Soup526 recipesCream of Tomato SoupCream of Tomato Soup107 recipesTomato BisqueTomato Bisque61 recipesCream Tomato SoupCream Tomato Soup28 recipes