Why it works: Beans and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 4,733 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
String Beans
Ingredients
Directions
Prepare
Wash the string beans, remove the ends of the pods, and pull off the strings.
Break the beans into 1‑inch pieces.
Cook and serve
Cook in boiling water until tender, about 1 to 2 hours.
Add ½ teaspoon salt for each quart of beans 30 minutes before serving.
Drain and season with salt, pepper, and butter, or dress with white sauce.
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 + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + buttertop 19% of all pairsSmell alikemoderateCooked together2,799 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 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
- String beans
- Form the main body of the dish, becoming tender as they cook in boiling water.
- Butter
- Adds richness and a smooth, savory coating to the drained beans.
The step that matters
Cook in boiling water until tender. Beans cooked too briefly stay fibrous and tough, while overcooking makes them soft and dull in color. Checking tenderness during cooking helps you stop at the right point.
Swap the beans
How well each one fits the dish's main ingredients (pepper, butter):
- Walnutfits about as well
- Black-eyed peafits about as well
- Almondfits about as well
- Beansthe original
Fit is the average pairing score against pepper, butter. 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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