Why it works: Beans and butter are a kitchen classic. They rank in the top 19% of all ingredient pairs, and cooks put them together in 2,799 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
French Beans
Ingredients
Directions
Prepare
Cut off the ends and remove the strings from the sides of the beans.
If small, cut the beans down the middle and across; if large, slice them thinly at an angle.
Soak the beans in cold water.
Cook and serve
Boil a pot of water, add salt and baking soda, then add the beans.
Boil until tender, then drain in a colander.
Serve with melted butter.
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 + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- French beans
- Provide the main vegetable body and tender-crisp texture of the dish.
- Baking soda
- Raises the pot water's pH, helping the beans stay bright green while cooking.
- Butter
- Adds richness and a silky coating once melted over the cooked beans.
The step that matters
Boil until tender, then drain. Boiling time decides the texture: too short leaves beans raw and fibrous, too long turns them dull and mushy. Draining promptly stops residual cooking from softening them further.
“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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