Why it works: Parsley and pepper 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 for Chops, Fillet or Steak
Ingredients
Directions
Make the tomato base
Combine tomatoes, water, onion, bay leaf, parsley, and mace in a pot.
Bring the mixture to a boil.
Press the tomato mixture through a sieve to remove solids.
Make the roux and finish
Melt butter in a separate pan and add flour to the melted butter, mixing until smooth.
Add the butter and flour mixture to the strained tomatoes.
Simmer for 10 minutes.
Season with salt and pepper.
Serve.
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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Parsley + peppertop 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 + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 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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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body, acidity and flavor of the sauce.
- Butter
- Adds richness and fat, and carries flavor through the sauce.
- Flour
- Thickens the sauce as it cooks with the melted butter and tomato liquid.
The step that matters
Adding the butter and flour mixture to the strained tomatoes. Flour thickens only when its starch is cooked in liquid. Adding the roux to the tomatoes and then simmering lets the starch swell fully and removes any raw flour taste, while stirring prevents lumps.
Swap the mace
How well each one fits the dish's main ingredients (tomato, butter, flour, onion, parsley, pepper):
- Thymefits better
- Garlicfits better
- Capersfits better
- Macethe original
Fit is the average pairing score against tomato, butter, flour, onion, parsley, 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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