Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Mushroom Savoury
26 small rounds of toastIngredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Assemble
Place a slice of tomato on each round of toast.
Add a small mushroom on top, with the stalk and peel removed.
Put a small piece of butter in the center of each mushroom.
Bake and serve
Bake in a moderate oven at 350°F (175°C) until the mushrooms are tender.
Serve hot, sprinkled with finely-chopped 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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Tomato + mushroomtop 7% of all pairsSmell alikemoderateCooked together2,719 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + parsleytop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mushrooms
- Soften during baking and provide the main savory filling on each toast.
- Butter
- Adds moisture and richness as it melts over the mushrooms during baking.
- Tomato
- Adds moisture and a bright acidic flavor beneath the mushroom.
The step that matters
Baking until the mushrooms are tender. Mushrooms release water and shrink as they cook. Baking until they are fully tender concentrates their flavor and keeps the toast from becoming soggy, while underbaking leaves them tough.
Swap the tomato
How well each one fits the dish's main ingredients (mushroom, pepper, butter, parsley):
- Shallotfits better
- Carrotfits better
- Capsicumfits better
- Tomatothe original
Fit is the average pairing score against mushroom, pepper, butter, parsley. 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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