Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Milk, or Cream Soup
Ingredients
Directions
Make the soup
Heat the milk or cream in a pot.
Add the butter and stir until melted.
In a small bowl, mix the flour or corn starch with a little cold milk to create a slurry.
Add the slurry to the pot and stir until the soup thickens.
Serve
Pour the hot soup over the toasted bread pieces.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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
- Milk or cream
- Forms the liquid base of the soup and provides richness.
- Flour or corn starch
- Thickens the soup when heated with liquid, giving it body.
- Sweet butter
- Adds fat for a smooth, rich flavor and mouthfeel.
- Toasted bread
- Soaks up the hot soup and gives it a crisp-soft contrast in texture.
The step that matters
Adding the slurry to the hot soup. Starch must be mixed with cold liquid first so it disperses evenly; added as dry powder it clumps. Once it is stirred into the hot milk, the starch swells and thickens the soup.
“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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