Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
French Beans a LA Franqaise
Ingredients
Directions
Prepare the beans
Shell the beans just before cooking, wash, and drain them.
Boil the beans in salted water until tender, about 15 to 20 minutes.
Make the sauce
In a clean saucepan, melt the butter over medium heat.
Stir in the flour and cook gently until lightly browned.
Add salt and pepper, then gradually pour in the veal gravy or cream.
Toss the beans in the sauce until heated through.
Remove from heat and quickly stir in the beaten egg yolks and lemon juice.
Serve
Serve immediately, optionally garnished with minced parsley.
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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Beans + parsleytop 8% of all pairsSmell alikestrongCooked together1,376 recipes
Shared aroma: linalool (floral, citrus).
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Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the sauce with fat and flavor as the roux base.
- Flour
- Thickens the butter into a roux that gives the sauce body.
- Egg yolks
- Enrich and thicken the sauce, giving it a smooth, rich texture.
- Veal gravy or cream
- Supplies the liquid and richness that form the body of the sauce.
- Lemon juice
- Adds acidity that brightens the richness of the sauce.
The step that matters
Adding the egg yolks off the heat. Egg yolks thicken when gently heated but curdle if they get too hot. Removing the pan from the heat before stirring them in, and stirring quickly, keeps the sauce smooth and silky.
“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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