Why it works: Asparagus and pepper are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 1,968 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Kentucky Asparagus
Ingredients
Directions
Cut the asparagus stalks to equal lengths.
Place the heads in one direction and tie them into bunches.
Put the bunches into a bag and submerge in well-salted boiling water.
Cook for 1.5 hours, then pour off the water and replenish with more boiling water.
Cook for another 1.5 hours to whiten and tenderize the asparagus.
Serve the asparagus on toast with drawn butter sauce, adding salt and pepper to taste.
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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Asparagus + peppertop 10% of all pairsSmell alikemoderateCooked together1,968 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Asparagus + buttertop 17% of all pairsSmell alikemoderateCooked together2,026 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Asparagus + saucetop 20% of all pairsSmell alikelowCooked together573 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
Swap the asparagus
How well each one fits the dish's main ingredients (pepper, butter, sauce):
- Capsicumfits better
- Tomatofits better
- Mustardfits better
- Asparagusthe original
Fit is the average pairing score against pepper, butter, sauce. Candidates are from the same food group and used in at least 100 recipes.
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