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Tomato Sauce

A simple sauce made from butter, flour, salt, pepper, and tomato pulp.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Pepper and tomato 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 ↓

Tomato Sauce

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Make the roux

  1. Melt the butter in a saucepan over medium heat.

  2. Stir in the flour and cook for 1-2 minutes.

Finish the sauce

  1. Gradually add the tomato pulp, stirring constantly.

  2. Season with salt and pepper, and cook until thickened.

  3. Serve warm.

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. Pepper + tomatotop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

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

  2. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  5. Butter + tomatotop 22% of all pairs
    Smell alikemoderate
    Cooked together6,918 recipes

    Shared aroma: 3-hexenal (apple, fruity).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Butter
Carries the flour and adds richness and a rounded, savoury flavour.
Flour
Thickens the sauce as its starch swells in the hot butter and tomato liquid.
Tomato pulp
Forms the main liquid of the sauce and supplies its body, acidity and flavour.

The step that matters

Gradually add the tomato pulp, stirring constantly. Flour starch clumps when it meets liquid all at once. Adding the pulp slowly while stirring coats each flour particle in butter and disperses it evenly, so the sauce thickens smoothly without lumps.

Swap the tomato

How well each one fits the dish's main ingredients (butter, flour, pepper):

  1. Shallotfits better
  2. Chivefits better
  3. Capsicumfits better
  4. Tomatothe original

Fit is the average pairing score against butter, flour, 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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