Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Gravy Soup
Ingredients
Directions
Place the meat at the bottom of a pot and add a piece of butter.
Chop the roots and herbs finely and layer them over the meat.
Cover the pot tightly and cook over low heat to extract the flavors.
When the gravy is nearly dry, add water and remove any fat.
For white soup, add cream only after removing from heat.
Ensure the ingredients are well proportioned for balanced flavor.
If the soup is too thin, mix butter with flour to thicken.
To remove fat, mix a cup of flour with water and boil it in the soup.
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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Meat + buttertop 16% of all pairsSmell alikemoderateCooked together7,594 recipes
Shared aroma: guaiacol (smoky, sweet).
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Meat + flourtop 28% of all pairsSmell alikelowCooked together5,529 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
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