Why it works: Beans and flour are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 2,080 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Stringed Beans
Ingredients
Directions
Prepare
Cut off each end of the string beans and chop them into small pieces.
Cook and serve
Boil the beans in just enough water to prevent burning.
Before removing from heat, add salt and butter, then sprinkle in a little flour.
Serve with only as much liquid as desired to retain sweetness.
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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Beans + flourtop 11% of all pairsSmell alikemoderateCooked together2,080 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Beans + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- String beans
- Form the main vegetable and give the dish its body and texture.
- Butter
- Adds richness and a smooth, rounded flavor to the beans.
- Flour
- Thickens the cooking liquid so it clings lightly to the beans.
The step that matters
Sprinkling in the flour before removing from heat. Flour clumps when it hits hot liquid all at once. Sprinkling it in a little at a time while stirring lets the starch disperse evenly and thicken the liquid smoothly.
Swap the beans
How well each one fits the dish's main ingredients (butter, flour):
- Almondfits better
- Macadamia nutfits better
- Cashew nutfits better
- Beansthe original
Fit is the average pairing score against butter, flour. 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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