Why it works: Endive and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 284 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
To Dress Asparagus with a Brown Sauce
Ingredients
Directions
Prepare
Scrape the asparagus clean and soak it in clean water.
Cut the asparagus into pieces about an inch long.
Wash and chop the endive and young lettuce.
Make the sauce
Stew the endive and lettuce in a little soup until tender.
Thicken the mixture with a bit of butter rolled in flour.
Season with white pepper, coarse sea salt, lemon juice, and a little ketchup.
Let the sauce stew until it looks rich and thick.
Serve the 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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Endive + lettucetop 1% of all pairsSmell alikestrongCooked together284 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Asparagus + endivetop 1% of all pairsSmell alikestrongCooked together33 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Asparagus + lettucetop 2% of all pairsSmell alikestrongCooked together313 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Asparagus + lemontop 6% of all pairsSmell alikemoderateCooked together704 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Endive + lemontop 8% of all pairsSmell alikestrongCooked together108 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Rolled in flour, it thickens the sauce and adds richness.
- Endive
- Stewed until tender, it softens and contributes body and mild bitterness to the sauce.
- Young lettuce
- Stewed until tender, it adds vegetable body and moisture to the sauce.
- Lemon
- Its juice adds acidity that brightens the flavour of the sauce.
The step that matters
Thickening with butter and flour. Flour must be cooked in the hot liquid long enough to lose its raw taste and to thicken smoothly. Stewing the sauce afterward lets the starch fully swell and gives a rich, thick texture without lumps.
Swap the white pepper
How well each one fits the dish's main ingredients (asparagus, endive, lettuce, butter, lemon, ketchup):
- Tarragonfits better
- Capersfits better
- Parsleyfits better
- White pepperthe original
Fit is the average pairing score against asparagus, endive, lettuce, butter, lemon, ketchup. 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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