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Tomato Butter

A sweet tomato preserve made with tomatoes, sugar, lemons, and cinnamon.

From an old cookbook · modernised transcription
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Why it works: Lemon and cinnamon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 7,950 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Tomato Butter

Ingredients

Directions

  1. Combine tomatoes, sugar, sliced lemons, and cinnamon in a large pot.

  2. Boil the mixture until it thickens, 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. Lemon + cinnamontop 7% of all pairs
    Smell alikestrong
    Cooked together7,950 recipes

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

  2. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Tomato + lemontop 11% of all pairs
    Smell alikemoderate
    Cooked together4,592 recipes

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

  4. Tomato + cinnamontop 11% of all pairs
    Smell alikemoderate
    Cooked together1,348 recipes

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

  5. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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

Tomatoes
Provide the bulk of the butter and its fresh, acidic tomato flavor.
Sugar
Adds sweetness and, as it concentrates, helps the butter thicken and keep its body.
Lemons
Add acidity and citrus aroma that brighten the sweet tomato flavor.

The step that matters

Boil until it thickens. As water evaporates the mixture concentrates and the sugar and fruit pectin set it into a spreadable butter. Stopping too early leaves it runny, while overcooking can scorch the sugar on the bottom of the pot, so stir often.

Swap the tomato

How well each one fits the dish's main ingredients (sugar, lemon, cinnamon):

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Kalefits better
  4. Tomatothe original

Fit is the average pairing score against sugar, lemon, cinnamon. 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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