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Tomato Sauce

A sauce made from canned tomatoes, onion, garlic, parsley, butter, flour, baking soda, sugar, salt, and pepper.

From an old cookbook · modernised transcription
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Why it works: Onion and garlic match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓

Tomato Sauce

Ingredients

Directions

Make the sauce base

  1. Cook the canned tomatoes with sugar, onion, garlic, and parsley for 15 minutes.

  2. Rub the mixture through a sieve.

Thicken and finish

  1. Melt the butter in a pan and add the flour.

  2. Stir the mixture into the tomatoes.

  3. Add a few grains of baking soda.

  4. Season with salt and pepper.

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. Onion + garlictop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  2. Tomato + garlictop 3% of all pairs
    Smell alikemoderate
    Cooked together14,076 recipes

    Shared aroma: furaneol (caramel, strawberry).

  3. Garlic + parsleytop 4% of all pairs
    Smell alikestrong
    Cooked together9,308 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  4. Clove + parsleytop 6% of all pairs
    Smell alikestrong
    Cooked together6,768 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  5. Tomato + oniontop 8% of all pairs
    Smell alikemoderate
    Cooked together20,633 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 main body and flavour of the sauce.
Butter
Adds richness and fat to the sauce.
Flour
Thickens the sauce as it combines with the butter and tomatoes.
Baking soda
Neutralises some of the tomato's acidity, softening its sharpness.

The step that matters

Stirring the flour-butter mixture into the tomatoes. Flour clumps if added raw or unevenly. Cooking the butter and flour together first and stirring it in smoothly helps the sauce thicken evenly without lumps.

Swap the clove

How well each one fits the dish's main ingredients (tomato, sugar, onion, garlic, parsley, butter, flour):

  1. Capersfits better
  2. Thymefits better
  3. Cuminfits better
  4. Clovethe original

Fit is the average pairing score against tomato, sugar, onion, garlic, parsley, butter, flour. 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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