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Sauce

Chilli Sauce

A tomato-based sauce with peppers, onions, vinegar, sugar, and salt, simmered for an hour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Chilli Sauce

Ingredients

Directions

  1. Remove seeds from the peppers and chop them finely.

  2. Combine all ingredients in a large pot.

  3. Boil the mixture for one hour, stirring occasionally.

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

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

  2. Tomato + oniontop 8% of all pairs
    Smell alikemoderate
    Cooked together20,633 recipes

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

  3. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  4. Vinegar + oniontop 14% of all pairs
    Smell alikemoderate
    Cooked together18,226 recipes

    Shared aroma: acetic acid (sour, vinegar).

  5. Vinegar + peppertop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Ripe tomatoes
Supply the bulk, moisture and body that cook down into the sauce.
Vinegar
Adds the sharp acidity that gives the sauce its tang.
Onions
Add savoury depth and mild sweetness as they soften and cook down.
Brown sugar
Adds sweetness that balances the acidity of the vinegar.
Peppers
Provide the heat and aroma of the sauce; removing seeds reduces the fiery burn.

The step that matters

Boil the mixture for one hour, stirring occasionally. As liquid evaporates, the sugar and chopped solids can thicken and scorch on the bottom of the pot. Regular stirring keeps the heat even, prevents sticking and burning, and lets the sauce reduce evenly.

Swap the onion

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

  1. Capsicumfits better
  2. Cucumberfits better
  3. Mustardfits better
  4. Onionthe original

Fit is the average pairing score against tomato, vinegar, sugar, pepper. 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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