Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Mushroom Sauce
Ingredients
Directions
Prepare the mushrooms
Remove the stalks from the mushrooms and cut large ones in halves or quarters.
Place the mushrooms in a saucepan with just enough stock or boiling water to cover them.
Season with salt, pepper, and butter, then boil until tender.
Make the sauce
In a separate pan, melt the butter and whisk in the flour to make a roux, cooking until lightly browned.
Stir in a portion of the mushroom cooking liquid until smooth.
Combine with the main sauce.
Add a few drops of lemon juice before serving over beef steaks or fillets.
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.
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Mushroom + peppertop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mushroom + lemontop 15% of all pairsSmell alikemoderateCooked together4,633 recipes
Shared aroma: 2-nonenal (fatty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
What each ingredient does
- Mushrooms
- Provide the main body of the sauce and its earthy flavour once simmered until tender.
- Butter
- Adds richness and flavour, and forms the fat base of the roux.
- Flour
- Thickens the sauce when cooked with butter into a roux.
- Stock or boiling water
- Cooks the mushrooms and its liquid is used to loosen the roux into a smooth sauce.
- Lemon juice
- Adds acidity that brightens the flavour of the sauce.
The step that matters
Cooking the roux. Flour must cook in melted butter until lightly browned to remove raw starch taste and build flavour; stirring in liquid too early or unevenly can leave lumps.
Swap the lemon
How well each one fits the dish's main ingredients (mushroom, pepper, butter, flour):
- Lemonthe original
- Plumfits about as well
- Limefits less well
- Cherryfits less well
Fit is the average pairing score against mushroom, pepper, butter, flour. 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.
More mushroom sauce recipes
You might also like
Lemon Sauce236 recipes
Mushroom Soup60 recipes
Tomato Soup526 recipes
Brown Bread461 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.