Skip to main content
Main

Tomato Catsup

A preserved tomato sauce made with tomatoes, salt, pepper, mustard, allspice, cloves, and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
Jump to recipe ↓

Why it works: Allspice and clove match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 7,874 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Tomato Catsup

Ingredients

Directions

Prepare the tomatoes

  1. Pass the tomatoes through a fruit press until thoroughly strained.

Season and cook

  1. Add salt, pepper, ground mustard, allspice, cloves, and vinegar.

  2. Cook the mixture until it thickens.

Bottle

  1. Put the catsup in bottles and seal.

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. Allspice + clovetop 1% of all pairs
    Smell alikestrong
    Cooked together7,874 recipes

    Shared aroma: estragole (anise, licorice).

  2. Mustard + allspicetop 2% of all pairs
    Smell alikestrong
    Cooked together1,928 recipes

    Shared aroma: methyleugenol (clove, spice).

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

    Shared aroma: ethyl octanoate (fruity, wine).

  4. Pepper + allspicetop 5% of all pairs
    Smell alikestrong
    Cooked together6,395 recipes

    Shared aroma: estragole (anise, licorice).

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

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

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 sauce and provide its body and flavor.
Vinegar
Adds acidity that sharpens flavor and helps preserve the ketchup.
Allspice
Adds warm, aromatic spice flavor.
Cloves
Adds a strong, aromatic spice note in small amounts.

The step that matters

Cook the mixture until it thickens. Simmering evaporates water from the tomato pulp, concentrating its solids so the sauce thickens. Stop too early and it stays thin; cook too long or too hot and it can scorch on the bottom of the pot, so stir and watch the texture.

Swap the tomato

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

  1. Horseradishfits better
  2. Shallotfits better
  3. Radishfits better
  4. Tomatothe original

Fit is the average pairing score against pepper, mustard, allspice, clove, vinegar. 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