Why it works: Shallot and mushroom are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 1,982 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Poivrade Sauce
Ingredients
Directions
Prepare the sauce
Chop the shallots finely.
In a bowl, mash the yolk of the hard-boiled egg with salt and cayenne pepper.
Add the mushroom or walnut ketchup and mix well.
Season with chili vinegar or lemon juice to taste.
Finish and serve
For a hot sauce, mix in melted butter to achieve the desired consistency; for a cold sauce, use salad oil.
Serve with hot or cold game.
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.
Photo for illustrative purposes only · Contact us to use it
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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Shallot + mushroomtop 4% of all pairsSmell alikemoderateCooked together1,982 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Shallot + peppertop 11% of all pairsSmell alikemoderateCooked together5,898 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Shallot + vinegartop 12% of all pairsSmell alikemoderateCooked together2,374 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled egg yolk
- Mashed yolk forms the creamy base and thickens the sauce.
- Melted butter or salad oil
- Adds richness and body, giving the sauce a smooth, emulsified texture.
- Mushroom or walnut ketchup
- Contributes concentrated savoury depth to the sauce.
- Chili vinegar or lemon juice
- Adds acidity that brightens the sauce and balances its richness.
The step that matters
Mixing in the fat. Fat must be added gradually so it emulsifies with the mashed yolk; adding it too fast can cause the sauce to separate or turn greasy. Reaching the desired consistency depends on this step.
Swap the shallot
How well each one fits the dish's main ingredients (egg, pepper, mushroom, vinegar, butter):
- Capsicumfits about as well
- Shallotthe original
- Asparagusfits about as well
- Spinachfits about as well
Fit is the average pairing score against egg, pepper, mushroom, vinegar, 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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