Why it works: Tomato and pepper match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and 17,913 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the tomatoes
Peel and slice the tomatoes finely.
Stew the tomatoes until perfectly smooth.
Finish the sauce
Season with salt and pepper, then add the butter.
Just before removing from heat, stir in the cream mixed with the flour.
Do not let it boil after adding the flour.
Serve
Pour the tomato mixture over the toast and 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 aroma chemistry they share, and how many recipes mention both.
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Tomato + peppertop 4% of all pairsAroma overlapstrongMentioned together17,913 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + creamtop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 8% of all pairsAroma overlapstrongMentioned together118,511 recipes
Shared aroma: nonanal (fat, citrus).
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Egg + flourtop 8% of all pairsAroma overlaplowMentioned together104,138 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour share little aroma chemistry, yet 122,858 recipes mention both: they likely 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 main body of the sauce and provide its acidity and flavor.
- Cream
- Adds richness and a smooth, creamy texture to the sauce.
- Flour
- Thickens the cream so the sauce becomes smooth and body-rich.
- Butter
- Adds fat for richness and a silky mouthfeel.
The step that matters
Do not let it boil after adding the flour. Flour-thickened cream can curdle or separate when boiled, and the starch will not thicken properly if overheated. Stirring it in just before removing the pan from heat keeps the sauce smooth and creamy.
“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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