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 ↓
French Beans, & LA pouUHe
Ingredients
Directions
Cook the beans
Wash the beans in cold water.
Boil 3 pints of water in a saucepan.
Add 1 teaspoon of salt to the boiling water.
Throw in the beans and boil quickly, uncovered, to keep them green.
When done, drain the beans carefully.
Make the butter
In a separate pan, melt 1 oz of butter with 1 teaspoon of flour, stirring for 3 minutes.
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).
-
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
- French beans
- Form the main vegetable and provide the tender, crisp-cooked texture of the dish.
- Butter
- Adds fat and rich flavor to the finished beans.
- Flour
- Thickens the melted butter, helping it cling to the beans.
The step that matters
Boil the beans quickly, uncovered. Boiling briskly in plenty of boiling water cooks the beans fast and helps keep their chlorophyll green. Prolonged cooking lets acids released from the vegetable turn the green colour olive-brown, so drain them as soon as they are done.
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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