Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Tomato Sauce to Serve with Beef Loaf
Ingredients
Directions
Strain the tomatoes.
Heat the strained tomatoes in a saucepan.
Cream the butter and flour together in a separate bowl.
Add the creamed mixture to the heated tomatoes.
Season the sauce with salt, pepper, and parsley.
Stir the sauce well.
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.
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + parsleytop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Tomatoes
- Form the liquid base, providing moisture and a mild acidity to the sauce.
- Butter
- Adds fat and richness, and carries flavor into the sauce.
- Flour
- Thickens the sauce as its starch swells when heated in the liquid.
The step that matters
Add the creamed mixture to the hot tomatoes. Flour starch swells and clumps when it meets hot liquid unevenly. Adding the butter and flour paste gradually while stirring helps it disperse and gives a smooth, evenly thickened sauce.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, pepper, parsley):
- Shallotfits better
- Carrotfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against butter, flour, pepper, parsley. 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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