Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 81,283 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Green Pea Soup
Ingredients
Directions
Make the white sauce
Scald the milk in a double boiler.
Melt the butter.
Stir in the flour, salt, and pepper until smooth.
Stir the butter mixture into the milk.
Cook for ten minutes, stirring until smooth.
Add the peas
Heat the peas in their own liquid.
Mash the peas through a strainer.
Add the pea pulp to the milk mixture.
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.
Photo for illustrative purposes only · Contact us to use it
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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Milk + buttertop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsAroma overlaplowMentioned together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peas + peppertop 15% of all pairsAroma overlapmoderateMentioned together5,331 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Milk + peastop 16% of all pairsAroma overlapmoderateMentioned together1,309 recipes
Shared aroma: hexanal (green, grassy).
Butter and flour share little aroma chemistry, yet 124,287 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
- Milk
- Forms the liquid base that becomes the body of the soup.
- Butter
- Enriches the base with fat and carries flavor into the sauce.
- Flour
- Thickens the milk and butter into a smooth, pourable sauce.
- Peas
- Supply the green color, sweet flavor, and pulp that thickens the soup.
The step that matters
Stir the butter mixture into the milk. Flour lumps form if the roux is poured in without steady stirring, because starch granules hydrate unevenly. Keep stirring so the sauce cooks smooth and thickens evenly.
“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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