Name: Chili Sauce
Ingredients: 9 large ripe tomatoes; 2 onions; 1 green pepper; ½ cup sugar; 1 cup vinegar; 1 tablespoon salt; 1 teaspoon allspice; 1 teaspoon cloves; 1 teaspoon mustard

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 ↓

Chili Sauce

Ingredients

Directions

Skin the tomatoes and chop all ingredients together.
Simmer the mixture for 1 hour.

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.

Allspice + clovetop 1% of all pairs

Smell alikestrong

Cooked together7,874 recipes

Shared aroma: estragole (anise, licorice).
Allspice + mustardtop 2% of all pairs

Smell alikestrong

Cooked together1,928 recipes

Shared aroma: methyleugenol (clove, spice).
Pepper + clovetop 5% of all pairs

Smell alikestrong

Cooked together17,451 recipes

Shared aroma: ethyl octanoate (fruity, wine).
Pepper + allspicetop 5% of all pairs

Smell alikestrong

Cooked together6,395 recipes

Shared aroma: estragole (anise, licorice).
Onion + mustardtop 6% of all pairs

Smell alikestrong

Cooked together9,259 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

Ripe tomatoes: Provide the main body, moisture and acidity of the sauce.
Onions: Add savory depth and aromatic sweetness as they soften during simmering.
Sugar: Adds sweetness that balances the acidity of the tomatoes and vinegar.
Vinegar: Adds sharp acidity that brightens the sauce and helps it keep.

Swap the tomato

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

Horseradishfits better
Shallotfits better
Capsicumfits better
Tomatothe original

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