Why it works: Mushroom and tomato are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,719 recipes. Both carry 1-octen-3-one, which smells mushroom, metallic. The science ↓
Mushroom Sauce
Ingredients
Directions
Prepare
Remove the fur from the mushrooms and leave them whole or quarter them.
Prepare the tomatoes by removing the stalks, halving them, and squeezing out the seeds and watery pulp.
Make the sauce
Stew the mushrooms in rich brown gravy until tender.
Season with mace, cayenne, and salt as needed.
Add 1 tablespoon of mushroom catsup.
Stew the tomatoes with a few spoonfuls of gravy or strong broth until melted.
Press the mixture through a fine sieve and heat it again with additional gravy if too thick.
Serve
Serve hot, adjusting seasoning with salt and cayenne as needed.
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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Mushroom + tomatotop 7% of all pairsSmell alikemoderateCooked together2,719 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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 and earthy flavor of the sauce.
- Tomatoes
- Add acidity and body, thickening the sauce once pressed through a sieve.
- Rich brown gravy
- Supplies liquid and savory depth in which the mushrooms stew.
- Mushroom catsup
- Adds concentrated mushroom flavor and savory depth.
The step that matters
Pressing the tomato mixture through a fine sieve. Removing seeds and watery pulp before pressing keeps the sauce smooth and prevents excess water from thinning it. Straining also removes skins and fibres, so the texture stays silky rather than grainy.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (mushroom, mace, pepper, tomato, butter):
- Capsicumfits better
- Potatofits about as well
- Carrotfits about as well
- Onionthe original
Fit is the average pairing score against mushroom, mace, pepper, tomato, 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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